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authorAndrew Dunstan <andrew@dunslane.net>2009-02-02 20:07:37 +0000
committerAndrew Dunstan <andrew@dunslane.net>2009-02-02 20:07:37 +0000
commit775f1b379e3a282140f60ef65a11d1444dc80ccf (patch)
tree9d6a1320d8d85588d927c45096df47e9044d6248
parent3a5b77371522b64feda006a7aed2a0e57bfb2b22 (diff)
downloadpostgresql-775f1b379e3a282140f60ef65a11d1444dc80ccf.tar.gz
postgresql-775f1b379e3a282140f60ef65a11d1444dc80ccf.zip
Provide for parallel restoration from a custom format archive. Each data and
post-data step is run in a separate worker child (a thread on Windows, a child process elsewhere) up to the concurrent number specified by the new pg_restore command-line --multi-thread | -m switch. Andrew Dunstan, with some editing by Tom Lane.
Diffstat
-rw-r--r--doc/src/sgml/ref/pg_restore.sgml24
-rw-r--r--src/bin/pg_dump/pg_backup.h14
-rw-r--r--src/bin/pg_dump/pg_backup_archiver.c1358
-rw-r--r--src/bin/pg_dump/pg_backup_archiver.h30
-rw-r--r--src/bin/pg_dump/pg_backup_custom.c104
-rw-r--r--src/bin/pg_dump/pg_backup_db.c47
-rw-r--r--src/bin/pg_dump/pg_backup_files.c5
-rw-r--r--src/bin/pg_dump/pg_backup_null.c5
-rw-r--r--src/bin/pg_dump/pg_backup_tar.c6
-rw-r--r--src/bin/pg_dump/pg_dump.c167
-rw-r--r--src/bin/pg_dump/pg_restore.c25
11 files changed, 1509 insertions, 276 deletions
diff --git a/doc/src/sgml/ref/pg_restore.sgml b/doc/src/sgml/ref/pg_restore.sgml
index f13c6447722..92c9f4be935 100644
--- a/doc/src/sgml/ref/pg_restore.sgml
+++ b/doc/src/sgml/ref/pg_restore.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/pg_restore.sgml,v 1.77 2009/01/05 16:54:36 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/pg_restore.sgml,v 1.78 2009/02/02 20:07:36 adunstan Exp $ -->
<refentry id="APP-PGRESTORE">
<refmeta>
@@ -242,6 +242,28 @@
</varlistentry>
<varlistentry>
+ <term><option>-m <replaceable class="parameter">number-of-threads</replaceable></option></term>
+ <term><option>--multi-thread=<replaceable class="parameter">number-of-threads</replaceable></option></term>
+ <listitem>
+ <para>
+ Run the most time-consuming parts of <application>pg_restore</>
+ &mdash; those which load data, create indexes, or create
+ constraints &mdash; using multiple concurrent connections to the
+ database. This option can dramatically reduce the time to restore a
+ large database to a server running on a multi-processor machine.
+ </para>
+
+ <para>
+ This option is ignored when emitting a script rather than connecting
+ directly to a database server. Multiple threads cannot be used
+ together with <option>--single-transaction</option>. Also, the input
+ must be a plain file (not, for example, a pipe), and at present only
+ the custom archive format is supported.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>-n <replaceable class="parameter">namespace</replaceable></option></term>
<term><option>--schema=<replaceable class="parameter">schema</replaceable></option></term>
<listitem>
diff --git a/src/bin/pg_dump/pg_backup.h b/src/bin/pg_dump/pg_backup.h
index fa7e2d55f13..72bc066853e 100644
--- a/src/bin/pg_dump/pg_backup.h
+++ b/src/bin/pg_dump/pg_backup.h
@@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup.h,v 1.48 2009/01/05 16:54:36 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup.h,v 1.49 2009/02/02 20:07:36 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -53,6 +53,14 @@ typedef enum _archiveMode
archModeRead
} ArchiveMode;
+typedef enum _teSection
+{
+ SECTION_NONE = 1, /* COMMENTs, ACLs, etc; can be anywhere */
+ SECTION_PRE_DATA, /* stuff to be processed before data */
+ SECTION_DATA, /* TABLE DATA, BLOBS, BLOB COMMENTS */
+ SECTION_POST_DATA /* stuff to be processed after data */
+} teSection;
+
/*
* We may want to have some more user-readable data, but in the mean
* time this gives us some abstraction and type checking.
@@ -124,6 +132,7 @@ typedef struct _restoreOptions
int suppressDumpWarnings; /* Suppress output of WARNING entries
* to stderr */
bool single_txn;
+ int number_of_threads;
bool *idWanted; /* array showing which dump IDs to emit */
} RestoreOptions;
@@ -152,7 +161,8 @@ extern void ArchiveEntry(Archive *AHX,
const char *tag,
const char *namespace, const char *tablespace,
const char *owner, bool withOids,
- const char *desc, const char *defn,
+ const char *desc, teSection section,
+ const char *defn,
const char *dropStmt, const char *copyStmt,
const DumpId *deps, int nDeps,
DataDumperPtr dumpFn, void *dumpArg);
diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index 9d877cb2d32..076bb0bf6f1 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.161 2009/01/13 11:44:56 mha Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.162 2009/02/02 20:07:36 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -24,8 +24,9 @@
#include "dumputils.h"
#include <ctype.h>
-
#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
#ifdef WIN32
#include <io.h>
@@ -33,6 +34,44 @@
#include "libpq/libpq-fs.h"
+/*
+ * Special exit values from worker children. We reserve 0 for normal
+ * success; 1 and other small values should be interpreted as crashes.
+ */
+#define WORKER_CREATE_DONE 10
+#define WORKER_INHIBIT_DATA 11
+#define WORKER_IGNORED_ERRORS 12
+
+/*
+ * Unix uses exit to return result from worker child, so function is void.
+ * Windows thread result comes via function return.
+ */
+#ifndef WIN32
+#define parallel_restore_result void
+#else
+#define parallel_restore_result DWORD
+#endif
+
+/* IDs for worker children are either PIDs or thread handles */
+#ifndef WIN32
+#define thandle pid_t
+#else
+#define thandle HANDLE
+#endif
+
+typedef struct _restore_args
+{
+ ArchiveHandle *AH;
+ TocEntry *te;
+} RestoreArgs;
+
+typedef struct _parallel_slot
+{
+ thandle child_id;
+ RestoreArgs *args;
+} ParallelSlot;
+
+#define NO_SLOT (-1)
const char *progname;
@@ -71,6 +110,30 @@ static void dumpTimestamp(ArchiveHandle *AH, const char *msg, time_t tim);
static OutputContext SetOutput(ArchiveHandle *AH, char *filename, int compression);
static void ResetOutput(ArchiveHandle *AH, OutputContext savedContext);
+static int restore_toc_entry(ArchiveHandle *AH, TocEntry *te,
+ RestoreOptions *ropt, bool is_parallel);
+static void restore_toc_entries_parallel(ArchiveHandle *AH);
+static thandle spawn_restore(RestoreArgs *args);
+static thandle reap_child(ParallelSlot *slots, int n_slots, int *work_status);
+static bool work_in_progress(ParallelSlot *slots, int n_slots);
+static int get_next_slot(ParallelSlot *slots, int n_slots);
+static TocEntry *get_next_work_item(ArchiveHandle *AH,
+ TocEntry **first_unprocessed,
+ ParallelSlot *slots, int n_slots);
+static parallel_restore_result parallel_restore(RestoreArgs *args);
+static void mark_work_done(ArchiveHandle *AH, thandle worker, int status,
+ ParallelSlot *slots, int n_slots);
+static void fix_dependencies(ArchiveHandle *AH);
+static void repoint_table_dependencies(ArchiveHandle *AH,
+ DumpId tableId, DumpId tableDataId);
+static void identify_locking_dependencies(TocEntry *te,
+ TocEntry **tocsByDumpId);
+static void reduce_dependencies(ArchiveHandle *AH, TocEntry *te);
+static void mark_create_done(ArchiveHandle *AH, TocEntry *te);
+static void inhibit_data_for_failed_table(ArchiveHandle *AH, TocEntry *te);
+static ArchiveHandle *CloneArchive(ArchiveHandle *AH);
+static void DeCloneArchive(ArchiveHandle *AH);
+
/*
* Wrapper functions.
@@ -131,7 +194,6 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
TocEntry *te;
teReqs reqs;
OutputContext sav;
- bool defnDumped;
AH->ropt = ropt;
AH->stage = STAGE_INITIALIZING;
@@ -146,6 +208,7 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
*/
if (ropt->create && ropt->dropSchema)
die_horribly(AH, modulename, "-C and -c are incompatible options\n");
+
/*
* -1 is not compatible with -C, because we can't create a database
* inside a transaction block.
@@ -154,6 +217,21 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
die_horribly(AH, modulename, "-C and -1 are incompatible options\n");
/*
+ * Make sure we won't need (de)compression we haven't got
+ */
+#ifndef HAVE_LIBZ
+ if (AH->compression != 0 && AH->PrintTocDataPtr != NULL)
+ {
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ reqs = _tocEntryRequired(te, ropt, false);
+ if (te->hadDumper && (reqs & REQ_DATA) != 0)
+ die_horribly(AH, modulename, "cannot restore from compressed archive (compression not supported in this installation)\n");
+ }
+ }
+#endif
+
+ /*
* If we're using a DB connection, then connect it.
*/
if (ropt->useDB)
@@ -268,148 +346,21 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
*/
if (AH->currSchema)
free(AH->currSchema);
- AH->currSchema = strdup("");
+ AH->currSchema = NULL;
}
/*
- * Now process each non-ACL TOC entry
+ * In serial mode, we now process each non-ACL TOC entry.
+ *
+ * In parallel mode, turn control over to the parallel-restore logic.
*/
- for (te = AH->toc->next; te != AH->toc; te = te->next)
+ if (ropt->number_of_threads > 1 && ropt->useDB)
+ restore_toc_entries_parallel(AH);
+ else
{
- AH->currentTE = te;
-
- /* Work out what, if anything, we want from this entry */
- reqs = _tocEntryRequired(te, ropt, false);
-
- /* Dump any relevant dump warnings to stderr */
- if (!ropt->suppressDumpWarnings && strcmp(te->desc, "WARNING") == 0)
- {
- if (!ropt->dataOnly && te->defn != NULL && strlen(te->defn) != 0)
- write_msg(modulename, "warning from original dump file: %s\n", te->defn);
- else if (te->copyStmt != NULL && strlen(te->copyStmt) != 0)
- write_msg(modulename, "warning from original dump file: %s\n", te->copyStmt);
- }
-
- defnDumped = false;
-
- if ((reqs & REQ_SCHEMA) != 0) /* We want the schema */
- {
- ahlog(AH, 1, "creating %s %s\n", te->desc, te->tag);
-
- _printTocEntry(AH, te, ropt, false, false);
- defnDumped = true;
-
- /*
- * If we could not create a table and --no-data-for-failed-tables
- * was given, ignore the corresponding TABLE DATA
- */
- if (ropt->noDataForFailedTables &&
- AH->lastErrorTE == te &&
- strcmp(te->desc, "TABLE") == 0)
- {
- TocEntry *tes;
-
- ahlog(AH, 1, "table \"%s\" could not be created, will not restore its data\n",
- te->tag);
-
- for (tes = te->next; tes != AH->toc; tes = tes->next)
- {
- if (strcmp(tes->desc, "TABLE DATA") == 0 &&
- strcmp(tes->tag, te->tag) == 0 &&
- strcmp(tes->namespace ? tes->namespace : "",
- te->namespace ? te->namespace : "") == 0)
- {
- /* mark it unwanted */
- ropt->idWanted[tes->dumpId - 1] = false;
- break;
- }
- }
- }
-
- /* If we created a DB, connect to it... */
- if (strcmp(te->desc, "DATABASE") == 0)
- {
- ahlog(AH, 1, "connecting to new database \"%s\"\n", te->tag);
- _reconnectToDB(AH, te->tag);
- }
- }
-
- /*
- * If we have a data component, then process it
- */
- if ((reqs & REQ_DATA) != 0)
- {
- /*
- * hadDumper will be set if there is genuine data component for
- * this node. Otherwise, we need to check the defn field for
- * statements that need to be executed in data-only restores.
- */
- if (te->hadDumper)
- {
- /*
- * If we can output the data, then restore it.
- */
- if (AH->PrintTocDataPtr !=NULL && (reqs & REQ_DATA) != 0)
- {
-#ifndef HAVE_LIBZ
- if (AH->compression != 0)
- die_horribly(AH, modulename, "cannot restore from compressed archive (compression not supported in this installation)\n");
-#endif
-
- _printTocEntry(AH, te, ropt, true, false);
-
- if (strcmp(te->desc, "BLOBS") == 0 ||
- strcmp(te->desc, "BLOB COMMENTS") == 0)
- {
- ahlog(AH, 1, "restoring %s\n", te->desc);
-
- _selectOutputSchema(AH, "pg_catalog");
-
- (*AH->PrintTocDataPtr) (AH, te, ropt);
- }
- else
- {
- _disableTriggersIfNecessary(AH, te, ropt);
-
- /* Select owner and schema as necessary */
- _becomeOwner(AH, te);
- _selectOutputSchema(AH, te->namespace);
-
- ahlog(AH, 1, "restoring data for table \"%s\"\n",
- te->tag);
-
- /*
- * If we have a copy statement, use it. As of V1.3,
- * these are separate to allow easy import from
- * withing a database connection. Pre 1.3 archives can
- * not use DB connections and are sent to output only.
- *
- * For V1.3+, the table data MUST have a copy
- * statement so that we can go into appropriate mode
- * with libpq.
- */
- if (te->copyStmt && strlen(te->copyStmt) > 0)
- {
- ahprintf(AH, "%s", te->copyStmt);
- AH->writingCopyData = true;
- }
-
- (*AH->PrintTocDataPtr) (AH, te, ropt);
-
- AH->writingCopyData = false;
-
- _enableTriggersIfNecessary(AH, te, ropt);
- }
- }
- }
- else if (!defnDumped)
- {
- /* If we haven't already dumped the defn part, do so now */
- ahlog(AH, 1, "executing %s %s\n", te->desc, te->tag);
- _printTocEntry(AH, te, ropt, false, false);
- }
- }
- } /* end loop over TOC entries */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ (void) restore_toc_entry(AH, te, ropt, false);
+ }
/*
* Scan TOC again to output ownership commands and ACLs
@@ -458,6 +409,193 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
}
/*
+ * Restore a single TOC item. Used in both parallel and non-parallel restore;
+ * is_parallel is true if we are in a worker child process.
+ *
+ * Returns 0 normally, but WORKER_CREATE_DONE or WORKER_INHIBIT_DATA if
+ * the parallel parent has to make the corresponding status update.
+ */
+static int
+restore_toc_entry(ArchiveHandle *AH, TocEntry *te,
+ RestoreOptions *ropt, bool is_parallel)
+{
+ int retval = 0;
+ teReqs reqs;
+ bool defnDumped;
+
+ AH->currentTE = te;
+
+ /* Work out what, if anything, we want from this entry */
+ reqs = _tocEntryRequired(te, ropt, false);
+
+ /* Dump any relevant dump warnings to stderr */
+ if (!ropt->suppressDumpWarnings && strcmp(te->desc, "WARNING") == 0)
+ {
+ if (!ropt->dataOnly && te->defn != NULL && strlen(te->defn) != 0)
+ write_msg(modulename, "warning from original dump file: %s\n", te->defn);
+ else if (te->copyStmt != NULL && strlen(te->copyStmt) != 0)
+ write_msg(modulename, "warning from original dump file: %s\n", te->copyStmt);
+ }
+
+ defnDumped = false;
+
+ if ((reqs & REQ_SCHEMA) != 0) /* We want the schema */
+ {
+ ahlog(AH, 1, "creating %s %s\n", te->desc, te->tag);
+
+ _printTocEntry(AH, te, ropt, false, false);
+ defnDumped = true;
+
+ if (strcmp(te->desc, "TABLE") == 0)
+ {
+ if (AH->lastErrorTE == te)
+ {
+ /*
+ * We failed to create the table.
+ * If --no-data-for-failed-tables was given,
+ * mark the corresponding TABLE DATA to be ignored.
+ *
+ * In the parallel case this must be done in the parent,
+ * so we just set the return value.
+ */
+ if (ropt->noDataForFailedTables)
+ {
+ if (is_parallel)
+ retval = WORKER_INHIBIT_DATA;
+ else
+ inhibit_data_for_failed_table(AH, te);
+ }
+ }
+ else
+ {
+ /*
+ * We created the table successfully. Mark the
+ * corresponding TABLE DATA for possible truncation.
+ *
+ * In the parallel case this must be done in the parent,
+ * so we just set the return value.
+ */
+ if (is_parallel)
+ retval = WORKER_CREATE_DONE;
+ else
+ mark_create_done(AH, te);
+ }
+ }
+
+ /* If we created a DB, connect to it... */
+ if (strcmp(te->desc, "DATABASE") == 0)
+ {
+ ahlog(AH, 1, "connecting to new database \"%s\"\n", te->tag);
+ _reconnectToDB(AH, te->tag);
+ }
+ }
+
+ /*
+ * If we have a data component, then process it
+ */
+ if ((reqs & REQ_DATA) != 0)
+ {
+ /*
+ * hadDumper will be set if there is genuine data component for
+ * this node. Otherwise, we need to check the defn field for
+ * statements that need to be executed in data-only restores.
+ */
+ if (te->hadDumper)
+ {
+ /*
+ * If we can output the data, then restore it.
+ */
+ if (AH->PrintTocDataPtr != NULL && (reqs & REQ_DATA) != 0)
+ {
+ _printTocEntry(AH, te, ropt, true, false);
+
+ if (strcmp(te->desc, "BLOBS") == 0 ||
+ strcmp(te->desc, "BLOB COMMENTS") == 0)
+ {
+ ahlog(AH, 1, "restoring %s\n", te->desc);
+
+ _selectOutputSchema(AH, "pg_catalog");
+
+ (*AH->PrintTocDataPtr) (AH, te, ropt);
+ }
+ else
+ {
+ _disableTriggersIfNecessary(AH, te, ropt);
+
+ /* Select owner and schema as necessary */
+ _becomeOwner(AH, te);
+ _selectOutputSchema(AH, te->namespace);
+
+ ahlog(AH, 1, "restoring data for table \"%s\"\n",
+ te->tag);
+
+ /*
+ * In parallel restore, if we created the table earlier
+ * in the run then we wrap the COPY in a transaction and
+ * precede it with a TRUNCATE. If archiving is not on
+ * this prevents WAL-logging the COPY. This obtains a
+ * speedup similar to that from using single_txn mode
+ * in non-parallel restores.
+ */
+ if (is_parallel && te->created)
+ {
+ /*
+ * Parallel restore is always talking directly to a
+ * server, so no need to see if we should issue BEGIN.
+ */
+ StartTransaction(AH);
+
+ /*
+ * If the server version is >= 8.4, make sure we issue
+ * TRUNCATE with ONLY so that child tables are not
+ * wiped.
+ */
+ ahprintf(AH, "TRUNCATE TABLE %s%s;\n\n",
+ (PQserverVersion(AH->connection) >= 80400 ?
+ "ONLY " : ""),
+ fmtId(te->tag));
+ }
+
+ /*
+ * If we have a copy statement, use it. As of V1.3,
+ * these are separate to allow easy import from
+ * withing a database connection. Pre 1.3 archives can
+ * not use DB connections and are sent to output only.
+ *
+ * For V1.3+, the table data MUST have a copy
+ * statement so that we can go into appropriate mode
+ * with libpq.
+ */
+ if (te->copyStmt && strlen(te->copyStmt) > 0)
+ {
+ ahprintf(AH, "%s", te->copyStmt);
+ AH->writingCopyData = true;
+ }
+
+ (*AH->PrintTocDataPtr) (AH, te, ropt);
+
+ AH->writingCopyData = false;
+
+ /* close out the transaction started above */
+ if (is_parallel && te->created)
+ CommitTransaction(AH);
+
+ _enableTriggersIfNecessary(AH, te, ropt);
+ }
+ }
+ }
+ else if (!defnDumped)
+ {
+ /* If we haven't already dumped the defn part, do so now */
+ ahlog(AH, 1, "executing %s %s\n", te->desc, te->tag);
+ _printTocEntry(AH, te, ropt, false, false);
+ }
+ }
+
+ return retval;
+}
+
+/*
* Allocate a new RestoreOptions block.
* This is mainly so we can initialize it, but also for future expansion,
*/
@@ -555,7 +693,8 @@ ArchiveEntry(Archive *AHX,
const char *namespace,
const char *tablespace,
const char *owner, bool withOids,
- const char *desc, const char *defn,
+ const char *desc, teSection section,
+ const char *defn,
const char *dropStmt, const char *copyStmt,
const DumpId *deps, int nDeps,
DataDumperPtr dumpFn, void *dumpArg)
@@ -578,6 +717,7 @@ ArchiveEntry(Archive *AHX,
newToc->catalogId = catalogId;
newToc->dumpId = dumpId;
+ newToc->section = section;
newToc->tag = strdup(tag);
newToc->namespace = namespace ? strdup(namespace) : NULL;
@@ -616,7 +756,7 @@ void
PrintTOCSummary(Archive *AHX, RestoreOptions *ropt)
{
ArchiveHandle *AH = (ArchiveHandle *) AHX;
- TocEntry *te = AH->toc->next;
+ TocEntry *te;
OutputContext sav;
char *fmtName;
@@ -655,14 +795,22 @@ PrintTOCSummary(Archive *AHX, RestoreOptions *ropt)
ahprintf(AH, ";\n;\n; Selected TOC Entries:\n;\n");
- while (te != AH->toc)
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
{
- if (_tocEntryRequired(te, ropt, true) != 0)
+ if (ropt->verbose || _tocEntryRequired(te, ropt, true) != 0)
ahprintf(AH, "%d; %u %u %s %s %s %s\n", te->dumpId,
te->catalogId.tableoid, te->catalogId.oid,
te->desc, te->namespace ? te->namespace : "-",
te->tag, te->owner);
- te = te->next;
+ if (ropt->verbose && te->nDeps > 0)
+ {
+ int i;
+
+ ahprintf(AH, ";\tdepends on:");
+ for (i = 0; i < te->nDeps; i++)
+ ahprintf(AH, " %d", te->dependencies[i]);
+ ahprintf(AH, "\n");
+ }
}
if (ropt->filename)
@@ -1316,12 +1464,10 @@ getTocEntryByDumpId(ArchiveHandle *AH, DumpId id)
{
TocEntry *te;
- te = AH->toc->next;
- while (te != AH->toc)
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
{
if (te->dumpId == id)
return te;
- te = te->next;
}
return NULL;
}
@@ -1696,9 +1842,9 @@ _allocAH(const char *FileSpec, const ArchiveFormat fmt,
else
AH->fSpec = NULL;
- AH->currUser = strdup(""); /* So it's valid, but we can free() it later
- * if necessary */
- AH->currSchema = strdup(""); /* ditto */
+ AH->currUser = NULL; /* unknown */
+ AH->currSchema = NULL; /* ditto */
+ AH->currTablespace = NULL; /* ditto */
AH->currWithOids = -1; /* force SET */
AH->toc = (TocEntry *) calloc(1, sizeof(TocEntry));
@@ -1734,10 +1880,6 @@ _allocAH(const char *FileSpec, const ArchiveFormat fmt,
}
#endif
-#if 0
- write_msg(modulename, "archive format is %d\n", fmt);
-#endif
-
if (fmt == archUnknown)
AH->format = _discoverArchiveFormat(AH);
else
@@ -1772,11 +1914,11 @@ _allocAH(const char *FileSpec, const ArchiveFormat fmt,
void
WriteDataChunks(ArchiveHandle *AH)
{
- TocEntry *te = AH->toc->next;
+ TocEntry *te;
StartDataPtr startPtr;
EndDataPtr endPtr;
- while (te != AH->toc)
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
{
if (te->dataDumper != NULL)
{
@@ -1811,7 +1953,6 @@ WriteDataChunks(ArchiveHandle *AH)
(*endPtr) (AH, te);
AH->currToc = NULL;
}
- te = te->next;
}
}
@@ -1839,6 +1980,7 @@ WriteToc(ArchiveHandle *AH)
WriteStr(AH, te->tag);
WriteStr(AH, te->desc);
+ WriteInt(AH, te->section);
WriteStr(AH, te->defn);
WriteStr(AH, te->dropStmt);
WriteStr(AH, te->copyStmt);
@@ -1868,8 +2010,7 @@ ReadToc(ArchiveHandle *AH)
DumpId *deps;
int depIdx;
int depSize;
-
- TocEntry *te = AH->toc->next;
+ TocEntry *te;
AH->tocCount = ReadInt(AH);
AH->maxDumpId = 0;
@@ -1904,6 +2045,35 @@ ReadToc(ArchiveHandle *AH)
te->tag = ReadStr(AH);
te->desc = ReadStr(AH);
+
+ if (AH->version >= K_VERS_1_11)
+ {
+ te->section = ReadInt(AH);
+ }
+ else
+ {
+ /*
+ * rules for pre-8.4 archives wherein pg_dump hasn't classified
+ * the entries into sections
+ */
+ if (strcmp(te->desc, "COMMENT") == 0 ||
+ strcmp(te->desc, "ACL") == 0)
+ te->section = SECTION_NONE;
+ else if (strcmp(te->desc, "TABLE DATA") == 0 ||
+ strcmp(te->desc, "BLOBS") == 0 ||
+ strcmp(te->desc, "BLOB COMMENTS") == 0)
+ te->section = SECTION_DATA;
+ else if (strcmp(te->desc, "CONSTRAINT") == 0 ||
+ strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
+ strcmp(te->desc, "FK CONSTRAINT") == 0 ||
+ strcmp(te->desc, "INDEX") == 0 ||
+ strcmp(te->desc, "RULE") == 0 ||
+ strcmp(te->desc, "TRIGGER") == 0)
+ te->section = SECTION_POST_DATA;
+ else
+ te->section = SECTION_PRE_DATA;
+ }
+
te->defn = ReadStr(AH);
te->dropStmt = ReadStr(AH);
@@ -2269,13 +2439,15 @@ _reconnectToDB(ArchiveHandle *AH, const char *dbname)
*/
if (AH->currUser)
free(AH->currUser);
+ AH->currUser = NULL;
- AH->currUser = strdup("");
-
- /* don't assume we still know the output schema */
+ /* don't assume we still know the output schema, tablespace, etc either */
if (AH->currSchema)
free(AH->currSchema);
- AH->currSchema = strdup("");
+ AH->currSchema = NULL;
+ if (AH->currTablespace)
+ free(AH->currTablespace);
+ AH->currTablespace = NULL;
AH->currWithOids = -1;
/* re-establish fixed state */
@@ -2304,7 +2476,6 @@ _becomeUser(ArchiveHandle *AH, const char *user)
*/
if (AH->currUser)
free(AH->currUser);
-
AH->currUser = strdup(user);
}
@@ -2824,15 +2995,13 @@ ReadHead(ArchiveHandle *AH)
* checkSeek
* check to see if fseek can be performed.
*/
-
bool
checkSeek(FILE *fp)
{
-
if (fseeko(fp, 0, SEEK_CUR) != 0)
return false;
else if (sizeof(pgoff_t) > sizeof(long))
-
+ {
/*
* At this point, pgoff_t is too large for long, so we return based on
* whether an pgoff_t version of fseek is available.
@@ -2842,6 +3011,7 @@ checkSeek(FILE *fp)
#else
return false;
#endif
+ }
else
return true;
}
@@ -2870,3 +3040,855 @@ dumpTimestamp(ArchiveHandle *AH, const char *msg, time_t tim)
localtime(&tim)) != 0)
ahprintf(AH, "-- %s %s\n\n", msg, buf);
}
+
+
+/*
+ * Main engine for parallel restore.
+ *
+ * Work is done in three phases.
+ * First we process tocEntries until we come to one that is marked
+ * SECTION_DATA or SECTION_POST_DATA, in a single connection, just as for a
+ * standard restore. Second we process the remaining non-ACL steps in
+ * parallel worker children (threads on Windows, processes on Unix), each of
+ * which connects separately to the database. Finally we process all the ACL
+ * entries in a single connection (that happens back in RestoreArchive).
+ */
+static void
+restore_toc_entries_parallel(ArchiveHandle *AH)
+{
+ RestoreOptions *ropt = AH->ropt;
+ int n_slots = ropt->number_of_threads;
+ ParallelSlot *slots;
+ int work_status;
+ int next_slot;
+ TocEntry *first_unprocessed = AH->toc->next;
+ TocEntry *next_work_item;
+ thandle ret_child;
+ TocEntry *te;
+
+ ahlog(AH,2,"entering restore_toc_entries_parallel\n");
+
+ /* we haven't got round to making this work for all archive formats */
+ if (AH->ClonePtr == NULL || AH->ReopenPtr == NULL)
+ die_horribly(AH, modulename, "parallel restore is not supported with this archive file format\n");
+
+ slots = (ParallelSlot *) calloc(sizeof(ParallelSlot), n_slots);
+
+ /* Adjust dependency information */
+ fix_dependencies(AH);
+
+ /*
+ * Do all the early stuff in a single connection in the parent.
+ * There's no great point in running it in parallel, in fact it will
+ * actually run faster in a single connection because we avoid all the
+ * connection and setup overhead.
+ */
+ while ((next_work_item = get_next_work_item(AH, &first_unprocessed,
+ NULL, 0)) != NULL)
+ {
+ if (next_work_item->section == SECTION_DATA ||
+ next_work_item->section == SECTION_POST_DATA)
+ break;
+
+ ahlog(AH, 1, "processing item %d %s %s\n",
+ next_work_item->dumpId,
+ next_work_item->desc, next_work_item->tag);
+
+ (void) restore_toc_entry(AH, next_work_item, ropt, false);
+
+ next_work_item->restored = true;
+ reduce_dependencies(AH, next_work_item);
+ }
+
+ /*
+ * Now close parent connection in prep for parallel steps. We do this
+ * mainly to ensure that we don't exceed the specified number of parallel
+ * connections.
+ */
+ PQfinish(AH->connection);
+ AH->connection = NULL;
+
+ /* blow away any transient state from the old connection */
+ if (AH->currUser)
+ free(AH->currUser);
+ AH->currUser = NULL;
+ if (AH->currSchema)
+ free(AH->currSchema);
+ AH->currSchema = NULL;
+ if (AH->currTablespace)
+ free(AH->currTablespace);
+ AH->currTablespace = NULL;
+ AH->currWithOids = -1;
+
+ /*
+ * main parent loop
+ *
+ * Keep going until there is no worker still running AND there is no work
+ * left to be done.
+ */
+
+ ahlog(AH,1,"entering main parallel loop\n");
+
+ while ((next_work_item = get_next_work_item(AH, &first_unprocessed,
+ slots, n_slots)) != NULL ||
+ work_in_progress(slots, n_slots))
+ {
+ if (next_work_item != NULL)
+ {
+ teReqs reqs;
+
+ /* If not to be dumped, don't waste time launching a worker */
+ reqs = _tocEntryRequired(next_work_item, AH->ropt, false);
+ if ((reqs & (REQ_SCHEMA | REQ_DATA)) == 0)
+ {
+ ahlog(AH, 1, "skipping item %d %s %s\n",
+ next_work_item->dumpId,
+ next_work_item->desc, next_work_item->tag);
+
+ next_work_item->restored = true;
+ reduce_dependencies(AH, next_work_item);
+
+ continue;
+ }
+
+ if ((next_slot = get_next_slot(slots, n_slots)) != NO_SLOT)
+ {
+ /* There is work still to do and a worker slot available */
+ thandle child;
+ RestoreArgs *args;
+
+ ahlog(AH, 1, "launching item %d %s %s\n",
+ next_work_item->dumpId,
+ next_work_item->desc, next_work_item->tag);
+
+ next_work_item->restored = true;
+
+ /* this memory is dealloced in mark_work_done() */
+ args = malloc(sizeof(RestoreArgs));
+ args->AH = CloneArchive(AH);
+ args->te = next_work_item;
+
+ /* run the step in a worker child */
+ child = spawn_restore(args);
+
+ slots[next_slot].child_id = child;
+ slots[next_slot].args = args;
+
+ continue;
+ }
+ }
+
+ /*
+ * If we get here there must be work being done. Either there is no
+ * work available to schedule (and work_in_progress returned true) or
+ * there are no slots available. So we wait for a worker to finish,
+ * and process the result.
+ */
+ ret_child = reap_child(slots, n_slots, &work_status);
+
+ if (WIFEXITED(work_status))
+ {
+ mark_work_done(AH, ret_child, WEXITSTATUS(work_status),
+ slots, n_slots);
+ }
+ else
+ {
+ die_horribly(AH, modulename, "worker process crashed: status %d\n",
+ work_status);
+ }
+ }
+
+ ahlog(AH,1,"finished main parallel loop\n");
+
+ /*
+ * Now reconnect the single parent connection.
+ */
+ ConnectDatabase((Archive *) AH, ropt->dbname,
+ ropt->pghost, ropt->pgport, ropt->username,
+ ropt->requirePassword);
+
+ _doSetFixedOutputState(AH);
+
+ /*
+ * Make sure there is no non-ACL work left due to, say,
+ * circular dependencies, or some other pathological condition.
+ * If so, do it in the single parent connection.
+ */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ if (!te->restored)
+ {
+ ahlog(AH, 1, "processing missed item %d %s %s\n",
+ te->dumpId, te->desc, te->tag);
+ (void) restore_toc_entry(AH, te, ropt, false);
+ }
+ }
+
+ /* The ACLs will be handled back in RestoreArchive. */
+}
+
+/*
+ * create a worker child to perform a restore step in parallel
+ */
+static thandle
+spawn_restore(RestoreArgs *args)
+{
+ thandle child;
+
+ /* Ensure stdio state is quiesced before forking */
+ fflush(NULL);
+
+#ifndef WIN32
+ child = fork();
+ if (child == 0)
+ {
+ /* in child process */
+ parallel_restore(args);
+ die_horribly(args->AH, modulename,
+ "parallel_restore should not return\n");
+ }
+ else if (child < 0)
+ {
+ /* fork failed */
+ die_horribly(args->AH, modulename,
+ "could not create worker process: %s\n",
+ strerror(errno));
+ }
+#else
+ child = (HANDLE) _beginthreadex(NULL, 0, (void *) parallel_restore,
+ args, 0, NULL);
+ if (child == 0)
+ die_horribly(args->AH, modulename,
+ "could not create worker thread: %s\n",
+ strerror(errno));
+#endif
+
+ return child;
+}
+
+/*
+ * collect status from a completed worker child
+ */
+static thandle
+reap_child(ParallelSlot *slots, int n_slots, int *work_status)
+{
+#ifndef WIN32
+ /* Unix is so much easier ... */
+ return wait(work_status);
+#else
+ static HANDLE *handles = NULL;
+ int hindex, snum, tnum;
+ thandle ret_child;
+ DWORD res;
+
+ /* first time around only, make space for handles to listen on */
+ if (handles == NULL)
+ handles = (HANDLE *) calloc(sizeof(HANDLE),n_slots);
+
+ /* set up list of handles to listen to */
+ for (snum=0, tnum=0; snum < n_slots; snum++)
+ if (slots[snum].child_id != 0)
+ handles[tnum++] = slots[snum].child_id;
+
+ /* wait for one to finish */
+ hindex = WaitForMultipleObjects(tnum, handles, false, INFINITE);
+
+ /* get handle of finished thread */
+ ret_child = handles[hindex - WAIT_OBJECT_0];
+
+ /* get the result */
+ GetExitCodeThread(ret_child,&res);
+ *work_status = res;
+
+ /* dispose of handle to stop leaks */
+ CloseHandle(ret_child);
+
+ return ret_child;
+#endif
+}
+
+/*
+ * are we doing anything now?
+ */
+static bool
+work_in_progress(ParallelSlot *slots, int n_slots)
+{
+ int i;
+
+ for (i = 0; i < n_slots; i++)
+ {
+ if (slots[i].child_id != 0)
+ return true;
+ }
+ return false;
+}
+
+/*
+ * find the first free parallel slot (if any).
+ */
+static int
+get_next_slot(ParallelSlot *slots, int n_slots)
+{
+ int i;
+
+ for (i = 0; i < n_slots; i++)
+ {
+ if (slots[i].child_id == 0)
+ return i;
+ }
+ return NO_SLOT;
+}
+
+/*
+ * Find the next work item (if any) that is capable of being run now.
+ *
+ * To qualify, the item must have no remaining dependencies
+ * and no requirement for locks that is incompatible with
+ * items currently running.
+ *
+ * first_unprocessed is state data that tracks the location of the first
+ * TocEntry that's not marked 'restored'. This avoids O(N^2) search time
+ * with long TOC lists. (Even though the constant is pretty small, it'd
+ * get us eventually.)
+ *
+ * pref_non_data is for an alternative selection algorithm that gives
+ * preference to non-data items if there is already a data load running.
+ * It is currently disabled.
+ */
+static TocEntry *
+get_next_work_item(ArchiveHandle *AH, TocEntry **first_unprocessed,
+ ParallelSlot *slots, int n_slots)
+{
+ bool pref_non_data = false; /* or get from AH->ropt */
+ TocEntry *data_te = NULL;
+ TocEntry *te;
+ int i,j,k;
+
+ /*
+ * Bogus heuristics for pref_non_data
+ */
+ if (pref_non_data)
+ {
+ int count = 0;
+
+ for (k=0; k < n_slots; k++)
+ if (slots[k].args->te != NULL &&
+ slots[k].args->te->section == SECTION_DATA)
+ count++;
+ if (n_slots == 0 || count * 4 < n_slots)
+ pref_non_data = false;
+ }
+
+ /*
+ * Advance first_unprocessed if possible.
+ */
+ for (te = *first_unprocessed; te != AH->toc; te = te->next)
+ {
+ if (!te->restored)
+ break;
+ }
+ *first_unprocessed = te;
+
+ /*
+ * Search from first_unprocessed until we find an available item.
+ */
+ for (; te != AH->toc; te = te->next)
+ {
+ bool conflicts = false;
+
+ /* Ignore if already done or still waiting on dependencies */
+ if (te->restored || te->depCount > 0)
+ continue;
+
+ /*
+ * Check to see if the item would need exclusive lock on something
+ * that a currently running item also needs lock on. If so, we
+ * don't want to schedule them together.
+ */
+ for (i = 0; i < n_slots && !conflicts; i++)
+ {
+ TocEntry *running_te;
+
+ if (slots[i].args == NULL)
+ continue;
+ running_te = slots[i].args->te;
+ for (j = 0; j < te->nLockDeps && !conflicts; j++)
+ {
+ for (k = 0; k < running_te->nLockDeps; k++)
+ {
+ if (te->lockDeps[j] == running_te->lockDeps[k])
+ {
+ conflicts = true;
+ break;
+ }
+ }
+ }
+ }
+
+ if (conflicts)
+ continue;
+
+ if (pref_non_data && te->section == SECTION_DATA)
+ {
+ if (data_te == NULL)
+ data_te = te;
+ continue;
+ }
+
+ /* passed all tests, so this item can run */
+ return te;
+ }
+
+ if (data_te != NULL)
+ return data_te;
+
+ ahlog(AH,2,"no item ready\n");
+ return NULL;
+}
+
+
+/*
+ * Restore a single TOC item in parallel with others
+ *
+ * this is the procedure run as a thread (Windows) or a
+ * separate process (everything else).
+ */
+static parallel_restore_result
+parallel_restore(RestoreArgs *args)
+{
+ ArchiveHandle *AH = args->AH;
+ TocEntry *te = args->te;
+ RestoreOptions *ropt = AH->ropt;
+ int retval;
+
+ /*
+ * Close and reopen the input file so we have a private file pointer
+ * that doesn't stomp on anyone else's file pointer.
+ *
+ * Note: on Windows, since we are using threads not processes, this
+ * *doesn't* close the original file pointer but just open a new one.
+ */
+ (AH->ReopenPtr) (AH);
+
+ /*
+ * We need our own database connection, too
+ */
+ ConnectDatabase((Archive *) AH, ropt->dbname,
+ ropt->pghost, ropt->pgport, ropt->username,
+ ropt->requirePassword);
+
+ _doSetFixedOutputState(AH);
+
+ /* Restore the TOC item */
+ retval = restore_toc_entry(AH, te, ropt, true);
+
+ /* And clean up */
+ PQfinish(AH->connection);
+ AH->connection = NULL;
+
+ (AH->ClosePtr) (AH);
+
+ if (retval == 0 && AH->public.n_errors)
+ retval = WORKER_IGNORED_ERRORS;
+
+#ifndef WIN32
+ exit(retval);
+#else
+ return retval;
+#endif
+}
+
+
+/*
+ * Housekeeping to be done after a step has been parallel restored.
+ *
+ * Clear the appropriate slot, free all the extra memory we allocated,
+ * update status, and reduce the dependency count of any dependent items.
+ */
+static void
+mark_work_done(ArchiveHandle *AH, thandle worker, int status,
+ ParallelSlot *slots, int n_slots)
+{
+ TocEntry *te = NULL;
+ int i;
+
+ for (i = 0; i < n_slots; i++)
+ {
+ if (slots[i].child_id == worker)
+ {
+ slots[i].child_id = 0;
+ te = slots[i].args->te;
+ DeCloneArchive(slots[i].args->AH);
+ free(slots[i].args);
+ slots[i].args = NULL;
+
+ break;
+ }
+ }
+
+ if (te == NULL)
+ die_horribly(AH, modulename, "failed to find slot for finished worker\n");
+
+ ahlog(AH, 1, "finished item %d %s %s\n",
+ te->dumpId, te->desc, te->tag);
+
+ if (status == WORKER_CREATE_DONE)
+ mark_create_done(AH, te);
+ else if (status == WORKER_INHIBIT_DATA)
+ {
+ inhibit_data_for_failed_table(AH, te);
+ AH->public.n_errors++;
+ }
+ else if (status == WORKER_IGNORED_ERRORS)
+ AH->public.n_errors++;
+ else if (status != 0)
+ die_horribly(AH, modulename, "worker process failed: exit code %d\n",
+ status);
+
+ reduce_dependencies(AH, te);
+}
+
+
+/*
+ * Process the dependency information into a form useful for parallel restore.
+ *
+ * We set up depCount fields that are the number of as-yet-unprocessed
+ * dependencies for each TOC entry.
+ *
+ * We also identify locking dependencies so that we can avoid trying to
+ * schedule conflicting items at the same time.
+ */
+static void
+fix_dependencies(ArchiveHandle *AH)
+{
+ TocEntry **tocsByDumpId;
+ TocEntry *te;
+ int i;
+
+ /*
+ * For some of the steps here, it is convenient to have an array that
+ * indexes the TOC entries by dump ID, rather than searching the TOC
+ * list repeatedly. Entries for dump IDs not present in the TOC will
+ * be NULL.
+ *
+ * Also, initialize the depCount fields.
+ */
+ tocsByDumpId = (TocEntry **) calloc(AH->maxDumpId, sizeof(TocEntry *));
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ tocsByDumpId[te->dumpId - 1] = te;
+ te->depCount = te->nDeps;
+ }
+
+ /*
+ * POST_DATA items that are shown as depending on a table need to be
+ * re-pointed to depend on that table's data, instead. This ensures they
+ * won't get scheduled until the data has been loaded. We handle this by
+ * first finding TABLE/TABLE DATA pairs and then scanning all the
+ * dependencies.
+ *
+ * Note: currently, a TABLE DATA should always have exactly one
+ * dependency, on its TABLE item. So we don't bother to search,
+ * but look just at the first dependency. We do trouble to make sure
+ * that it's a TABLE, if possible. However, if the dependency isn't
+ * in the archive then just assume it was a TABLE; this is to cover
+ * cases where the table was suppressed but we have the data and some
+ * dependent post-data items.
+ */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ if (strcmp(te->desc, "TABLE DATA") == 0 && te->nDeps > 0)
+ {
+ DumpId tableId = te->dependencies[0];
+
+ if (tocsByDumpId[tableId - 1] == NULL ||
+ strcmp(tocsByDumpId[tableId - 1]->desc, "TABLE") == 0)
+ {
+ repoint_table_dependencies(AH, tableId, te->dumpId);
+ }
+ }
+ }
+
+ /*
+ * Pre-8.4 versions of pg_dump neglected to set up a dependency from
+ * BLOB COMMENTS to BLOBS. Cope. (We assume there's only one BLOBS
+ * and only one BLOB COMMENTS in such files.)
+ */
+ if (AH->version < K_VERS_1_11)
+ {
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ if (strcmp(te->desc, "BLOB COMMENTS") == 0 && te->nDeps == 0)
+ {
+ TocEntry *te2;
+
+ for (te2 = AH->toc->next; te2 != AH->toc; te2 = te2->next)
+ {
+ if (strcmp(te2->desc, "BLOBS") == 0)
+ {
+ te->dependencies = (DumpId *) malloc(sizeof(DumpId));
+ te->dependencies[0] = te2->dumpId;
+ te->nDeps++;
+ te->depCount++;
+ break;
+ }
+ }
+ break;
+ }
+ }
+ }
+
+ /*
+ * It is possible that the dependencies list items that are not in the
+ * archive at all. Subtract such items from the depCounts.
+ */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ for (i = 0; i < te->nDeps; i++)
+ {
+ if (tocsByDumpId[te->dependencies[i] - 1] == NULL)
+ te->depCount--;
+ }
+ }
+
+ /*
+ * Lastly, work out the locking dependencies.
+ */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ te->lockDeps = NULL;
+ te->nLockDeps = 0;
+ identify_locking_dependencies(te, tocsByDumpId);
+ }
+
+ free(tocsByDumpId);
+}
+
+/*
+ * Change dependencies on tableId to depend on tableDataId instead,
+ * but only in POST_DATA items.
+ */
+static void
+repoint_table_dependencies(ArchiveHandle *AH,
+ DumpId tableId, DumpId tableDataId)
+{
+ TocEntry *te;
+ int i;
+
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ if (te->section != SECTION_POST_DATA)
+ continue;
+ for (i = 0; i < te->nDeps; i++)
+ {
+ if (te->dependencies[i] == tableId)
+ {
+ te->dependencies[i] = tableDataId;
+ ahlog(AH, 2, "transferring dependency %d -> %d to %d\n",
+ te->dumpId, tableId, tableDataId);
+ }
+ }
+ }
+}
+
+/*
+ * Identify which objects we'll need exclusive lock on in order to restore
+ * the given TOC entry (*other* than the one identified by the TOC entry
+ * itself). Record their dump IDs in the entry's lockDeps[] array.
+ * tocsByDumpId[] is a convenience array to avoid searching the TOC
+ * for each dependency.
+ */
+static void
+identify_locking_dependencies(TocEntry *te, TocEntry **tocsByDumpId)
+{
+ DumpId *lockids;
+ int nlockids;
+ int i;
+
+ /* Quick exit if no dependencies at all */
+ if (te->nDeps == 0)
+ return;
+
+ /* Exit if this entry doesn't need exclusive lock on other objects */
+ if (!(strcmp(te->desc, "CONSTRAINT") == 0 ||
+ strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
+ strcmp(te->desc, "FK CONSTRAINT") == 0 ||
+ strcmp(te->desc, "RULE") == 0 ||
+ strcmp(te->desc, "TRIGGER") == 0))
+ return;
+
+ /*
+ * We assume the item requires exclusive lock on each TABLE item
+ * listed among its dependencies.
+ */
+ lockids = (DumpId *) malloc(te->nDeps * sizeof(DumpId));
+ nlockids = 0;
+ for (i = 0; i < te->nDeps; i++)
+ {
+ DumpId depid = te->dependencies[i];
+
+ if (tocsByDumpId[depid - 1] &&
+ strcmp(tocsByDumpId[depid - 1]->desc, "TABLE") == 0)
+ lockids[nlockids++] = depid;
+ }
+
+ if (nlockids == 0)
+ {
+ free(lockids);
+ return;
+ }
+
+ te->lockDeps = realloc(lockids, nlockids * sizeof(DumpId));
+ te->nLockDeps = nlockids;
+}
+
+/*
+ * Remove the specified TOC entry from the depCounts of items that depend on
+ * it, thereby possibly making them ready-to-run.
+ */
+static void
+reduce_dependencies(ArchiveHandle *AH, TocEntry *te)
+{
+ DumpId target = te->dumpId;
+ int i;
+
+ ahlog(AH,2,"reducing dependencies for %d\n",target);
+
+ /*
+ * We must examine all entries, not only the ones after the target item,
+ * because if the user used a -L switch then the original dependency-
+ * respecting order has been destroyed by SortTocFromFile.
+ */
+ for (te = AH->toc->next; te != AH->toc; te = te->next)
+ {
+ for (i = 0; i < te->nDeps; i++)
+ {
+ if (te->dependencies[i] == target)
+ te->depCount--;
+ }
+ }
+}
+
+/*
+ * Set the created flag on the DATA member corresponding to the given
+ * TABLE member
+ */
+static void
+mark_create_done(ArchiveHandle *AH, TocEntry *te)
+{
+ TocEntry *tes;
+
+ for (tes = AH->toc->next; tes != AH->toc; tes = tes->next)
+ {
+ if (strcmp(tes->desc, "TABLE DATA") == 0 &&
+ strcmp(tes->tag, te->tag) == 0 &&
+ strcmp(tes->namespace ? tes->namespace : "",
+ te->namespace ? te->namespace : "") == 0)
+ {
+ tes->created = true;
+ break;
+ }
+ }
+}
+
+/*
+ * Mark the DATA member corresponding to the given TABLE member
+ * as not wanted
+ */
+static void
+inhibit_data_for_failed_table(ArchiveHandle *AH, TocEntry *te)
+{
+ RestoreOptions *ropt = AH->ropt;
+ TocEntry *tes;
+
+ ahlog(AH, 1, "table \"%s\" could not be created, will not restore its data\n",
+ te->tag);
+
+ for (tes = AH->toc->next; tes != AH->toc; tes = tes->next)
+ {
+ if (strcmp(tes->desc, "TABLE DATA") == 0 &&
+ strcmp(tes->tag, te->tag) == 0 &&
+ strcmp(tes->namespace ? tes->namespace : "",
+ te->namespace ? te->namespace : "") == 0)
+ {
+ /* mark it unwanted; we assume idWanted array already exists */
+ ropt->idWanted[tes->dumpId - 1] = false;
+ break;
+ }
+ }
+}
+
+
+/*
+ * Clone and de-clone routines used in parallel restoration.
+ *
+ * Enough of the structure is cloned to ensure that there is no
+ * conflict between different threads each with their own clone.
+ *
+ * These could be public, but no need at present.
+ */
+static ArchiveHandle *
+CloneArchive(ArchiveHandle *AH)
+{
+ ArchiveHandle *clone;
+
+ /* Make a "flat" copy */
+ clone = (ArchiveHandle *) malloc(sizeof(ArchiveHandle));
+ if (clone == NULL)
+ die_horribly(AH, modulename, "out of memory\n");
+ memcpy(clone, AH, sizeof(ArchiveHandle));
+
+ /* Handle format-independent fields */
+ clone->pgCopyBuf = createPQExpBuffer();
+ clone->sqlBuf = createPQExpBuffer();
+ clone->sqlparse.tagBuf = NULL;
+
+ /* The clone will have its own connection, so disregard connection state */
+ clone->connection = NULL;
+ clone->currUser = NULL;
+ clone->currSchema = NULL;
+ clone->currTablespace = NULL;
+ clone->currWithOids = -1;
+
+ /* savedPassword must be local in case we change it while connecting */
+ if (clone->savedPassword)
+ clone->savedPassword = strdup(clone->savedPassword);
+
+ /* clone has its own error count, too */
+ clone->public.n_errors = 0;
+
+ /* Let the format-specific code have a chance too */
+ (clone->ClonePtr) (clone);
+
+ return clone;
+}
+
+/*
+ * Release clone-local storage.
+ *
+ * Note: we assume any clone-local connection was already closed.
+ */
+static void
+DeCloneArchive(ArchiveHandle *AH)
+{
+ /* Clear format-specific state */
+ (AH->DeClonePtr) (AH);
+
+ /* Clear state allocated by CloneArchive */
+ destroyPQExpBuffer(AH->pgCopyBuf);
+ destroyPQExpBuffer(AH->sqlBuf);
+ if (AH->sqlparse.tagBuf)
+ destroyPQExpBuffer(AH->sqlparse.tagBuf);
+
+ /* Clear any connection-local state */
+ if (AH->currUser)
+ free(AH->currUser);
+ if (AH->currSchema)
+ free(AH->currSchema);
+ if (AH->currTablespace)
+ free(AH->currTablespace);
+ if (AH->savedPassword)
+ free(AH->savedPassword);
+
+ free(AH);
+}
diff --git a/src/bin/pg_dump/pg_backup_archiver.h b/src/bin/pg_dump/pg_backup_archiver.h
index d8520ec9d6b..43756eba4d9 100644
--- a/src/bin/pg_dump/pg_backup_archiver.h
+++ b/src/bin/pg_dump/pg_backup_archiver.h
@@ -17,7 +17,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.h,v 1.76 2007/11/07 12:24:24 petere Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.h,v 1.77 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -62,7 +62,7 @@ typedef z_stream *z_streamp;
#endif
#define K_VERS_MAJOR 1
-#define K_VERS_MINOR 10
+#define K_VERS_MINOR 11
#define K_VERS_REV 0
/* Data block types */
@@ -85,8 +85,9 @@ typedef z_stream *z_streamp;
#define K_VERS_1_9 (( (1 * 256 + 9) * 256 + 0) * 256 + 0) /* add default_with_oids
* tracking */
#define K_VERS_1_10 (( (1 * 256 + 10) * 256 + 0) * 256 + 0) /* add tablespace */
+#define K_VERS_1_11 (( (1 * 256 + 11) * 256 + 0) * 256 + 0) /* add toc section indicator */
-#define K_VERS_MAX (( (1 * 256 + 10) * 256 + 255) * 256 + 0)
+#define K_VERS_MAX (( (1 * 256 + 11) * 256 + 255) * 256 + 0)
/* Flags to indicate disposition of offsets stored in files */
@@ -99,6 +100,7 @@ struct _tocEntry;
struct _restoreList;
typedef void (*ClosePtr) (struct _archiveHandle * AH);
+typedef void (*ReopenPtr) (struct _archiveHandle * AH);
typedef void (*ArchiveEntryPtr) (struct _archiveHandle * AH, struct _tocEntry * te);
typedef void (*StartDataPtr) (struct _archiveHandle * AH, struct _tocEntry * te);
@@ -120,6 +122,9 @@ typedef void (*ReadExtraTocPtr) (struct _archiveHandle * AH, struct _tocEntry *
typedef void (*PrintExtraTocPtr) (struct _archiveHandle * AH, struct _tocEntry * te);
typedef void (*PrintTocDataPtr) (struct _archiveHandle * AH, struct _tocEntry * te, RestoreOptions *ropt);
+typedef void (*ClonePtr) (struct _archiveHandle * AH);
+typedef void (*DeClonePtr) (struct _archiveHandle * AH);
+
typedef size_t (*CustomOutPtr) (struct _archiveHandle * AH, const void *buf, size_t len);
typedef struct _outputContext
@@ -212,6 +217,7 @@ typedef struct _archiveHandle
WriteBufPtr WriteBufPtr; /* Write a buffer of output to the archive */
ReadBufPtr ReadBufPtr; /* Read a buffer of input from the archive */
ClosePtr ClosePtr; /* Close the archive */
+ ReopenPtr ReopenPtr; /* Reopen the archive */
WriteExtraTocPtr WriteExtraTocPtr; /* Write extra TOC entry data
* associated with the current archive
* format */
@@ -225,11 +231,15 @@ typedef struct _archiveHandle
StartBlobPtr StartBlobPtr;
EndBlobPtr EndBlobPtr;
+ ClonePtr ClonePtr; /* Clone format-specific fields */
+ DeClonePtr DeClonePtr; /* Clean up cloned fields */
+
CustomOutPtr CustomOutPtr; /* Alternative script output routine */
/* Stuff for direct DB connection */
char *archdbname; /* DB name *read* from archive */
bool requirePassword;
+ char *savedPassword; /* password for ropt->username, if known */
PGconn *connection;
int connectToDB; /* Flag to indicate if direct DB connection is
* required */
@@ -260,9 +270,9 @@ typedef struct _archiveHandle
* etc */
/* these vars track state to avoid sending redundant SET commands */
- char *currUser; /* current username */
- char *currSchema; /* current schema */
- char *currTablespace; /* current tablespace */
+ char *currUser; /* current username, or NULL if unknown */
+ char *currSchema; /* current schema, or NULL */
+ char *currTablespace; /* current tablespace, or NULL */
bool currWithOids; /* current default_with_oids setting */
void *lo_buf;
@@ -282,6 +292,7 @@ typedef struct _tocEntry
struct _tocEntry *next;
CatalogId catalogId;
DumpId dumpId;
+ teSection section;
bool hadDumper; /* Archiver was passed a dumper routine (used
* in restore) */
char *tag; /* index tag */
@@ -300,6 +311,13 @@ typedef struct _tocEntry
DataDumperPtr dataDumper; /* Routine to dump data for object */
void *dataDumperArg; /* Arg for above routine */
void *formatData; /* TOC Entry data specific to file format */
+
+ /* working state (needed only for parallel restore) */
+ bool restored; /* item is in progress or done */
+ bool created; /* set for DATA member if TABLE was created */
+ int depCount; /* number of dependencies not yet restored */
+ DumpId *lockDeps; /* dumpIds of objects this one needs lock on */
+ int nLockDeps; /* number of such dependencies */
} TocEntry;
/* Used everywhere */
diff --git a/src/bin/pg_dump/pg_backup_custom.c b/src/bin/pg_dump/pg_backup_custom.c
index 5791ec78128..ebe2d6ce181 100644
--- a/src/bin/pg_dump/pg_backup_custom.c
+++ b/src/bin/pg_dump/pg_backup_custom.c
@@ -19,7 +19,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_custom.c,v 1.40 2007/10/28 21:55:52 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_custom.c,v 1.41 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -40,6 +40,7 @@ static int _ReadByte(ArchiveHandle *);
static size_t _WriteBuf(ArchiveHandle *AH, const void *buf, size_t len);
static size_t _ReadBuf(ArchiveHandle *AH, void *buf, size_t len);
static void _CloseArchive(ArchiveHandle *AH);
+static void _ReopenArchive(ArchiveHandle *AH);
static void _PrintTocData(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt);
static void _WriteExtraToc(ArchiveHandle *AH, TocEntry *te);
static void _ReadExtraToc(ArchiveHandle *AH, TocEntry *te);
@@ -54,6 +55,8 @@ static void _StartBlob(ArchiveHandle *AH, TocEntry *te, Oid oid);
static void _EndBlob(ArchiveHandle *AH, TocEntry *te, Oid oid);
static void _EndBlobs(ArchiveHandle *AH, TocEntry *te);
static void _LoadBlobs(ArchiveHandle *AH);
+static void _Clone(ArchiveHandle *AH);
+static void _DeClone(ArchiveHandle *AH);
/*------------
* Buffers used in zlib compression and extra data stored in archive and
@@ -120,6 +123,7 @@ InitArchiveFmt_Custom(ArchiveHandle *AH)
AH->WriteBufPtr = _WriteBuf;
AH->ReadBufPtr = _ReadBuf;
AH->ClosePtr = _CloseArchive;
+ AH->ReopenPtr = _ReopenArchive;
AH->PrintTocDataPtr = _PrintTocData;
AH->ReadExtraTocPtr = _ReadExtraToc;
AH->WriteExtraTocPtr = _WriteExtraToc;
@@ -129,6 +133,8 @@ InitArchiveFmt_Custom(ArchiveHandle *AH)
AH->StartBlobPtr = _StartBlob;
AH->EndBlobPtr = _EndBlob;
AH->EndBlobsPtr = _EndBlobs;
+ AH->ClonePtr = _Clone;
+ AH->DeClonePtr = _DeClone;
/*
* Set up some special context used in compressing data.
@@ -569,7 +575,6 @@ _PrintData(ArchiveHandle *AH)
zp->avail_in = blkLen;
#ifdef HAVE_LIBZ
-
if (AH->compression != 0)
{
while (zp->avail_in != 0)
@@ -585,15 +590,12 @@ _PrintData(ArchiveHandle *AH)
}
}
else
- {
#endif
+ {
in[zp->avail_in] = '\0';
ahwrite(in, 1, zp->avail_in, AH);
zp->avail_in = 0;
-
-#ifdef HAVE_LIBZ
}
-#endif
blkLen = ReadInt(AH);
}
@@ -822,11 +824,9 @@ _CloseArchive(ArchiveHandle *AH)
* expect to be doing seeks to read the data back - it may be ok to
* just use the existing self-consistent block formatting.
*/
- if (ctx->hasSeek)
- {
- fseeko(AH->FH, tpos, SEEK_SET);
+ if (ctx->hasSeek &&
+ fseeko(AH->FH, tpos, SEEK_SET) == 0)
WriteToc(AH);
- }
}
if (fclose(AH->FH) != 0)
@@ -835,6 +835,48 @@ _CloseArchive(ArchiveHandle *AH)
AH->FH = NULL;
}
+/*
+ * Reopen the archive's file handle.
+ *
+ * We close the original file handle, except on Windows. (The difference
+ * is because on Windows, this is used within a multithreading context,
+ * and we don't want a thread closing the parent file handle.)
+ */
+static void
+_ReopenArchive(ArchiveHandle *AH)
+{
+ lclContext *ctx = (lclContext *) AH->formatData;
+ pgoff_t tpos;
+
+ if (AH->mode == archModeWrite)
+ die_horribly(AH,modulename,"can only reopen input archives\n");
+ if (AH->fSpec == NULL || strcmp(AH->fSpec, "") == 0)
+ die_horribly(AH,modulename,"cannot reopen stdin\n");
+ if (!ctx->hasSeek)
+ die_horribly(AH,modulename,"cannot reopen non-seekable file\n");
+
+ errno = 0;
+ tpos = ftello(AH->FH);
+ if (errno)
+ die_horribly(AH, modulename, "could not determine seek position in archive file: %s\n",
+ strerror(errno));
+
+#ifndef WIN32
+ if (fclose(AH->FH) != 0)
+ die_horribly(AH, modulename, "could not close archive file: %s\n",
+ strerror(errno));
+#endif
+
+ AH->FH = fopen(AH->fSpec, PG_BINARY_R);
+ if (!AH->FH)
+ die_horribly(AH, modulename, "could not open input file \"%s\": %s\n",
+ AH->fSpec, strerror(errno));
+
+ if (fseeko(AH->FH, tpos, SEEK_SET) != 0)
+ die_horribly(AH, modulename, "could not set seek position in archive file: %s\n",
+ strerror(errno));
+}
+
/*--------------------------------------------------
* END OF FORMAT CALLBACKS
*--------------------------------------------------
@@ -990,7 +1032,6 @@ _DoDeflate(ArchiveHandle *AH, lclContext *ctx, int flush)
/*
* Terminate zlib context and flush it's buffers. If no zlib
* then just return.
- *
*/
static void
_EndDataCompressor(ArchiveHandle *AH, TocEntry *te)
@@ -1020,3 +1061,44 @@ _EndDataCompressor(ArchiveHandle *AH, TocEntry *te)
/* Send the end marker */
WriteInt(AH, 0);
}
+
+
+/*
+ * Clone format-specific fields during parallel restoration.
+ */
+static void
+_Clone(ArchiveHandle *AH)
+{
+ lclContext *ctx = (lclContext *) AH->formatData;
+
+ AH->formatData = (lclContext *) malloc(sizeof(lclContext));
+ if (AH->formatData == NULL)
+ die_horribly(AH, modulename, "out of memory\n");
+ memcpy(AH->formatData, ctx, sizeof(lclContext));
+ ctx = (lclContext *) AH->formatData;
+
+ ctx->zp = (z_streamp) malloc(sizeof(z_stream));
+ ctx->zlibOut = (char *) malloc(zlibOutSize + 1);
+ ctx->zlibIn = (char *) malloc(ctx->inSize);
+
+ if (ctx->zp == NULL || ctx->zlibOut == NULL || ctx->zlibIn == NULL)
+ die_horribly(AH, modulename, "out of memory\n");
+
+ /*
+ * Note: we do not make a local lo_buf because we expect at most one
+ * BLOBS entry per archive, so no parallelism is possible. Likewise,
+ * TOC-entry-local state isn't an issue because any one TOC entry is
+ * touched by just one worker child.
+ */
+}
+
+static void
+_DeClone(ArchiveHandle *AH)
+{
+ lclContext *ctx = (lclContext *) AH->formatData;
+
+ free(ctx->zlibOut);
+ free(ctx->zlibIn);
+ free(ctx->zp);
+ free(ctx);
+}
diff --git a/src/bin/pg_dump/pg_backup_db.c b/src/bin/pg_dump/pg_backup_db.c
index 0818b353e43..89fbabdfe6d 100644
--- a/src/bin/pg_dump/pg_backup_db.c
+++ b/src/bin/pg_dump/pg_backup_db.c
@@ -5,7 +5,7 @@
* Implements the basic DB functions used by the archiver.
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.80 2008/08/16 02:25:06 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.81 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -116,29 +116,36 @@ ReconnectToServer(ArchiveHandle *AH, const char *dbname, const char *username)
/*
* Connect to the db again.
+ *
+ * Note: it's not really all that sensible to use a single-entry password
+ * cache if the username keeps changing. In current usage, however, the
+ * username never does change, so one savedPassword is sufficient. We do
+ * update the cache on the off chance that the password has changed since the
+ * start of the run.
*/
static PGconn *
_connectDB(ArchiveHandle *AH, const char *reqdb, const char *requser)
{
PGconn *newConn;
- char *newdb;
- char *newuser;
- char *password = NULL;
+ const char *newdb;
+ const char *newuser;
+ char *password = AH->savedPassword;
bool new_pass;
if (!reqdb)
newdb = PQdb(AH->connection);
else
- newdb = (char *) reqdb;
+ newdb = reqdb;
- if (!requser || (strlen(requser) == 0))
+ if (!requser || strlen(requser) == 0)
newuser = PQuser(AH->connection);
else
- newuser = (char *) requser;
+ newuser = requser;
- ahlog(AH, 1, "connecting to database \"%s\" as user \"%s\"\n", newdb, newuser);
+ ahlog(AH, 1, "connecting to database \"%s\" as user \"%s\"\n",
+ newdb, newuser);
- if (AH->requirePassword)
+ if (AH->requirePassword && password == NULL)
{
password = simple_prompt("Password: ", 100, false);
if (password == NULL)
@@ -170,12 +177,13 @@ _connectDB(ArchiveHandle *AH, const char *reqdb, const char *requser)
if (password)
free(password);
password = simple_prompt("Password: ", 100, false);
+ if (password == NULL)
+ die_horribly(AH, modulename, "out of memory\n");
new_pass = true;
}
} while (new_pass);
- if (password)
- free(password);
+ AH->savedPassword = password;
/* check for version mismatch */
_check_database_version(AH);
@@ -190,6 +198,10 @@ _connectDB(ArchiveHandle *AH, const char *reqdb, const char *requser)
* Make a database connection with the given parameters. The
* connection handle is returned, the parameters are stored in AHX.
* An interactive password prompt is automatically issued if required.
+ *
+ * Note: it's not really all that sensible to use a single-entry password
+ * cache if the username keeps changing. In current usage, however, the
+ * username never does change, so one savedPassword is sufficient.
*/
PGconn *
ConnectDatabase(Archive *AHX,
@@ -200,21 +212,19 @@ ConnectDatabase(Archive *AHX,
int reqPwd)
{
ArchiveHandle *AH = (ArchiveHandle *) AHX;
- char *password = NULL;
+ char *password = AH->savedPassword;
bool new_pass;
if (AH->connection)
die_horribly(AH, modulename, "already connected to a database\n");
- if (reqPwd)
+ if (reqPwd && password == NULL)
{
password = simple_prompt("Password: ", 100, false);
if (password == NULL)
die_horribly(AH, modulename, "out of memory\n");
- AH->requirePassword = true;
}
- else
- AH->requirePassword = false;
+ AH->requirePassword = reqPwd;
/*
* Start the connection. Loop until we have a password if requested by
@@ -236,12 +246,13 @@ ConnectDatabase(Archive *AHX,
{
PQfinish(AH->connection);
password = simple_prompt("Password: ", 100, false);
+ if (password == NULL)
+ die_horribly(AH, modulename, "out of memory\n");
new_pass = true;
}
} while (new_pass);
- if (password)
- free(password);
+ AH->savedPassword = password;
/* check to see that the backend connection was successfully made */
if (PQstatus(AH->connection) == CONNECTION_BAD)
diff --git a/src/bin/pg_dump/pg_backup_files.c b/src/bin/pg_dump/pg_backup_files.c
index 47a4ddd77cb..544e48722b4 100644
--- a/src/bin/pg_dump/pg_backup_files.c
+++ b/src/bin/pg_dump/pg_backup_files.c
@@ -20,7 +20,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_files.c,v 1.34 2007/10/28 21:55:52 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_files.c,v 1.35 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -87,6 +87,7 @@ InitArchiveFmt_Files(ArchiveHandle *AH)
AH->WriteBufPtr = _WriteBuf;
AH->ReadBufPtr = _ReadBuf;
AH->ClosePtr = _CloseArchive;
+ AH->ReopenPtr = NULL;
AH->PrintTocDataPtr = _PrintTocData;
AH->ReadExtraTocPtr = _ReadExtraToc;
AH->WriteExtraTocPtr = _WriteExtraToc;
@@ -96,6 +97,8 @@ InitArchiveFmt_Files(ArchiveHandle *AH)
AH->StartBlobPtr = _StartBlob;
AH->EndBlobPtr = _EndBlob;
AH->EndBlobsPtr = _EndBlobs;
+ AH->ClonePtr = NULL;
+ AH->DeClonePtr = NULL;
/*
* Set up some special context used in compressing data.
diff --git a/src/bin/pg_dump/pg_backup_null.c b/src/bin/pg_dump/pg_backup_null.c
index f31a173ce1f..abff1138fc2 100644
--- a/src/bin/pg_dump/pg_backup_null.c
+++ b/src/bin/pg_dump/pg_backup_null.c
@@ -17,7 +17,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_null.c,v 1.19 2006/07/14 14:52:26 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_null.c,v 1.20 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -54,12 +54,15 @@ InitArchiveFmt_Null(ArchiveHandle *AH)
AH->WriteBytePtr = _WriteByte;
AH->WriteBufPtr = _WriteBuf;
AH->ClosePtr = _CloseArchive;
+ AH->ReopenPtr = NULL;
AH->PrintTocDataPtr = _PrintTocData;
AH->StartBlobsPtr = _StartBlobs;
AH->StartBlobPtr = _StartBlob;
AH->EndBlobPtr = _EndBlob;
AH->EndBlobsPtr = _EndBlobs;
+ AH->ClonePtr = NULL;
+ AH->DeClonePtr = NULL;
/* Initialize LO buffering */
AH->lo_buf_size = LOBBUFSIZE;
diff --git a/src/bin/pg_dump/pg_backup_tar.c b/src/bin/pg_dump/pg_backup_tar.c
index ddab506bf43..0156bbf9f00 100644
--- a/src/bin/pg_dump/pg_backup_tar.c
+++ b/src/bin/pg_dump/pg_backup_tar.c
@@ -16,7 +16,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.62 2007/11/15 21:14:41 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.63 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -143,6 +143,7 @@ InitArchiveFmt_Tar(ArchiveHandle *AH)
AH->WriteBufPtr = _WriteBuf;
AH->ReadBufPtr = _ReadBuf;
AH->ClosePtr = _CloseArchive;
+ AH->ReopenPtr = NULL;
AH->PrintTocDataPtr = _PrintTocData;
AH->ReadExtraTocPtr = _ReadExtraToc;
AH->WriteExtraTocPtr = _WriteExtraToc;
@@ -152,6 +153,8 @@ InitArchiveFmt_Tar(ArchiveHandle *AH)
AH->StartBlobPtr = _StartBlob;
AH->EndBlobPtr = _EndBlob;
AH->EndBlobsPtr = _EndBlobs;
+ AH->ClonePtr = NULL;
+ AH->DeClonePtr = NULL;
/*
* Set up some special context used in compressing data.
@@ -1383,5 +1386,4 @@ _tarWriteHeader(TAR_MEMBER *th)
if (fwrite(h, 1, 512, th->tarFH) != 512)
die_horribly(th->AH, modulename, "could not write to output file: %s\n", strerror(errno));
-
}
diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index 6f057f2a33e..5ef46ae08ed 100644
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -12,7 +12,7 @@
* by PostgreSQL
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.518 2009/02/02 19:31:39 alvherre Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.519 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -695,6 +695,7 @@ main(int argc, char **argv)
{
/* Add placeholders to allow correct sorting of blobs */
DumpableObject *blobobj;
+ DumpableObject *blobcobj;
blobobj = (DumpableObject *) malloc(sizeof(DumpableObject));
blobobj->objType = DO_BLOBS;
@@ -702,11 +703,12 @@ main(int argc, char **argv)
AssignDumpId(blobobj);
blobobj->name = strdup("BLOBS");
- blobobj = (DumpableObject *) malloc(sizeof(DumpableObject));
- blobobj->objType = DO_BLOB_COMMENTS;
- blobobj->catId = nilCatalogId;
- AssignDumpId(blobobj);
- blobobj->name = strdup("BLOB COMMENTS");
+ blobcobj = (DumpableObject *) malloc(sizeof(DumpableObject));
+ blobcobj->objType = DO_BLOB_COMMENTS;
+ blobcobj->catId = nilCatalogId;
+ AssignDumpId(blobcobj);
+ blobcobj->name = strdup("BLOB COMMENTS");
+ addObjectDependency(blobcobj, blobobj->dumpId);
}
/*
@@ -1385,11 +1387,10 @@ dumpTableData(Archive *fout, TableDataInfo *tdinfo)
}
ArchiveEntry(fout, tdinfo->dobj.catId, tdinfo->dobj.dumpId,
- tbinfo->dobj.name,
- tbinfo->dobj.namespace->dobj.name,
- NULL,
- tbinfo->rolname, false,
- "TABLE DATA", "", "", copyStmt,
+ tbinfo->dobj.name, tbinfo->dobj.namespace->dobj.name,
+ NULL, tbinfo->rolname,
+ false, "TABLE DATA", SECTION_DATA,
+ "", "", copyStmt,
tdinfo->dobj.dependencies, tdinfo->dobj.nDeps,
dumpFn, tdinfo);
@@ -1738,6 +1739,7 @@ dumpDatabase(Archive *AH)
dba, /* Owner */
false, /* with oids */
"DATABASE", /* Desc */
+ SECTION_PRE_DATA, /* Section */
creaQry->data, /* Create */
delQry->data, /* Del */
NULL, /* Copy */
@@ -1764,7 +1766,8 @@ dumpDatabase(Archive *AH)
appendPQExpBuffer(dbQry, ";\n");
ArchiveEntry(AH, dbCatId, createDumpId(), datname, NULL, NULL,
- dba, false, "COMMENT", dbQry->data, "", NULL,
+ dba, false, "COMMENT", SECTION_NONE,
+ dbQry->data, "", NULL,
&dbDumpId, 1, NULL, NULL);
}
}
@@ -1802,7 +1805,8 @@ dumpEncoding(Archive *AH)
ArchiveEntry(AH, nilCatalogId, createDumpId(),
"ENCODING", NULL, NULL, "",
- false, "ENCODING", qry->data, "", NULL,
+ false, "ENCODING", SECTION_PRE_DATA,
+ qry->data, "", NULL,
NULL, 0,
NULL, NULL);
@@ -1828,7 +1832,8 @@ dumpStdStrings(Archive *AH)
ArchiveEntry(AH, nilCatalogId, createDumpId(),
"STDSTRINGS", NULL, NULL, "",
- false, "STDSTRINGS", qry->data, "", NULL,
+ false, "STDSTRINGS", SECTION_PRE_DATA,
+ qry->data, "", NULL,
NULL, 0,
NULL, NULL);
@@ -5514,9 +5519,15 @@ dumpComment(Archive *fout, const char *target,
appendStringLiteralAH(query, comments->descr, fout);
appendPQExpBuffer(query, ";\n");
+ /*
+ * We mark comments as SECTION_NONE because they really belong
+ * in the same section as their parent, whether that is
+ * pre-data or post-data.
+ */
ArchiveEntry(fout, nilCatalogId, createDumpId(),
- target, namespace, NULL, owner, false,
- "COMMENT", query->data, "", NULL,
+ target, namespace, NULL, owner,
+ false, "COMMENT", SECTION_NONE,
+ query->data, "", NULL,
&(dumpId), 1,
NULL, NULL);
@@ -5575,9 +5586,9 @@ dumpTableComment(Archive *fout, TableInfo *tbinfo,
ArchiveEntry(fout, nilCatalogId, createDumpId(),
target->data,
tbinfo->dobj.namespace->dobj.name,
- NULL,
- tbinfo->rolname,
- false, "COMMENT", query->data, "", NULL,
+ NULL, tbinfo->rolname,
+ false, "COMMENT", SECTION_NONE,
+ query->data, "", NULL,
&(tbinfo->dobj.dumpId), 1,
NULL, NULL);
}
@@ -5597,9 +5608,9 @@ dumpTableComment(Archive *fout, TableInfo *tbinfo,
ArchiveEntry(fout, nilCatalogId, createDumpId(),
target->data,
tbinfo->dobj.namespace->dobj.name,
- NULL,
- tbinfo->rolname,
- false, "COMMENT", query->data, "", NULL,
+ NULL, tbinfo->rolname,
+ false, "COMMENT", SECTION_NONE,
+ query->data, "", NULL,
&(tbinfo->dobj.dumpId), 1,
NULL, NULL);
}
@@ -5872,15 +5883,17 @@ dumpDumpableObject(Archive *fout, DumpableObject *dobj)
case DO_BLOBS:
ArchiveEntry(fout, dobj->catId, dobj->dumpId,
dobj->name, NULL, NULL, "",
- false, "BLOBS", "", "", NULL,
- NULL, 0,
+ false, "BLOBS", SECTION_DATA,
+ "", "", NULL,
+ dobj->dependencies, dobj->nDeps,
dumpBlobs, NULL);
break;
case DO_BLOB_COMMENTS:
ArchiveEntry(fout, dobj->catId, dobj->dumpId,
dobj->name, NULL, NULL, "",
- false, "BLOB COMMENTS", "", "", NULL,
- NULL, 0,
+ false, "BLOB COMMENTS", SECTION_DATA,
+ "", "", NULL,
+ dobj->dependencies, dobj->nDeps,
dumpBlobComments, NULL);
break;
}
@@ -5918,7 +5931,8 @@ dumpNamespace(Archive *fout, NamespaceInfo *nspinfo)
nspinfo->dobj.name,
NULL, NULL,
nspinfo->rolname,
- false, "SCHEMA", q->data, delq->data, NULL,
+ false, "SCHEMA", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
nspinfo->dobj.dependencies, nspinfo->dobj.nDeps,
NULL, NULL);
@@ -6021,7 +6035,8 @@ dumpEnumType(Archive *fout, TypeInfo *tinfo)
tinfo->dobj.namespace->dobj.name,
NULL,
tinfo->rolname, false,
- "TYPE", q->data, delq->data, NULL,
+ "TYPE", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tinfo->dobj.dependencies, tinfo->dobj.nDeps,
NULL, NULL);
@@ -6389,7 +6404,8 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
tinfo->dobj.namespace->dobj.name,
NULL,
tinfo->rolname, false,
- "TYPE", q->data, delq->data, NULL,
+ "TYPE", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tinfo->dobj.dependencies, tinfo->dobj.nDeps,
NULL, NULL);
@@ -6507,7 +6523,8 @@ dumpDomain(Archive *fout, TypeInfo *tinfo)
tinfo->dobj.namespace->dobj.name,
NULL,
tinfo->rolname, false,
- "DOMAIN", q->data, delq->data, NULL,
+ "DOMAIN", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tinfo->dobj.dependencies, tinfo->dobj.nDeps,
NULL, NULL);
@@ -6600,7 +6617,8 @@ dumpCompositeType(Archive *fout, TypeInfo *tinfo)
tinfo->dobj.namespace->dobj.name,
NULL,
tinfo->rolname, false,
- "TYPE", q->data, delq->data, NULL,
+ "TYPE", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tinfo->dobj.dependencies, tinfo->dobj.nDeps,
NULL, NULL);
@@ -6653,7 +6671,8 @@ dumpShellType(Archive *fout, ShellTypeInfo *stinfo)
stinfo->dobj.namespace->dobj.name,
NULL,
stinfo->baseType->rolname, false,
- "SHELL TYPE", q->data, "", NULL,
+ "SHELL TYPE", SECTION_PRE_DATA,
+ q->data, "", NULL,
stinfo->dobj.dependencies, stinfo->dobj.nDeps,
NULL, NULL);
@@ -6773,7 +6792,7 @@ dumpProcLang(Archive *fout, ProcLangInfo *plang)
ArchiveEntry(fout, plang->dobj.catId, plang->dobj.dumpId,
plang->dobj.name,
lanschema, NULL, plang->lanowner,
- false, "PROCEDURAL LANGUAGE",
+ false, "PROCEDURAL LANGUAGE", SECTION_PRE_DATA,
defqry->data, delqry->data, NULL,
plang->dobj.dependencies, plang->dobj.nDeps,
NULL, NULL);
@@ -7331,7 +7350,8 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
finfo->dobj.namespace->dobj.name,
NULL,
finfo->rolname, false,
- "FUNCTION", q->data, delqry->data, NULL,
+ "FUNCTION", SECTION_PRE_DATA,
+ q->data, delqry->data, NULL,
finfo->dobj.dependencies, finfo->dobj.nDeps,
NULL, NULL);
@@ -7482,7 +7502,8 @@ dumpCast(Archive *fout, CastInfo *cast)
ArchiveEntry(fout, cast->dobj.catId, cast->dobj.dumpId,
castsig->data,
"pg_catalog", NULL, "",
- false, "CAST", defqry->data, delqry->data, NULL,
+ false, "CAST", SECTION_PRE_DATA,
+ defqry->data, delqry->data, NULL,
cast->dobj.dependencies, cast->dobj.nDeps,
NULL, NULL);
@@ -7723,7 +7744,8 @@ dumpOpr(Archive *fout, OprInfo *oprinfo)
oprinfo->dobj.namespace->dobj.name,
NULL,
oprinfo->rolname,
- false, "OPERATOR", q->data, delq->data, NULL,
+ false, "OPERATOR", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
oprinfo->dobj.dependencies, oprinfo->dobj.nDeps,
NULL, NULL);
@@ -8175,7 +8197,8 @@ dumpOpclass(Archive *fout, OpclassInfo *opcinfo)
opcinfo->dobj.namespace->dobj.name,
NULL,
opcinfo->rolname,
- false, "OPERATOR CLASS", q->data, delq->data, NULL,
+ false, "OPERATOR CLASS", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
opcinfo->dobj.dependencies, opcinfo->dobj.nDeps,
NULL, NULL);
@@ -8451,7 +8474,8 @@ dumpOpfamily(Archive *fout, OpfamilyInfo *opfinfo)
opfinfo->dobj.namespace->dobj.name,
NULL,
opfinfo->rolname,
- false, "OPERATOR FAMILY", q->data, delq->data, NULL,
+ false, "OPERATOR FAMILY", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
opfinfo->dobj.dependencies, opfinfo->dobj.nDeps,
NULL, NULL);
@@ -8564,7 +8588,8 @@ dumpConversion(Archive *fout, ConvInfo *convinfo)
convinfo->dobj.namespace->dobj.name,
NULL,
convinfo->rolname,
- false, "CONVERSION", q->data, delq->data, NULL,
+ false, "CONVERSION", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
convinfo->dobj.dependencies, convinfo->dobj.nDeps,
NULL, NULL);
@@ -8805,7 +8830,8 @@ dumpAgg(Archive *fout, AggInfo *agginfo)
agginfo->aggfn.dobj.namespace->dobj.name,
NULL,
agginfo->aggfn.rolname,
- false, "AGGREGATE", q->data, delq->data, NULL,
+ false, "AGGREGATE", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
agginfo->aggfn.dobj.dependencies, agginfo->aggfn.dobj.nDeps,
NULL, NULL);
@@ -8892,7 +8918,8 @@ dumpTSParser(Archive *fout, TSParserInfo *prsinfo)
prsinfo->dobj.namespace->dobj.name,
NULL,
"",
- false, "TEXT SEARCH PARSER", q->data, delq->data, NULL,
+ false, "TEXT SEARCH PARSER", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
prsinfo->dobj.dependencies, prsinfo->dobj.nDeps,
NULL, NULL);
@@ -8981,7 +9008,8 @@ dumpTSDictionary(Archive *fout, TSDictInfo *dictinfo)
dictinfo->dobj.namespace->dobj.name,
NULL,
dictinfo->rolname,
- false, "TEXT SEARCH DICTIONARY", q->data, delq->data, NULL,
+ false, "TEXT SEARCH DICTIONARY", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
dictinfo->dobj.dependencies, dictinfo->dobj.nDeps,
NULL, NULL);
@@ -9040,7 +9068,8 @@ dumpTSTemplate(Archive *fout, TSTemplateInfo *tmplinfo)
tmplinfo->dobj.namespace->dobj.name,
NULL,
"",
- false, "TEXT SEARCH TEMPLATE", q->data, delq->data, NULL,
+ false, "TEXT SEARCH TEMPLATE", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tmplinfo->dobj.dependencies, tmplinfo->dobj.nDeps,
NULL, NULL);
@@ -9170,7 +9199,8 @@ dumpTSConfig(Archive *fout, TSConfigInfo *cfginfo)
cfginfo->dobj.namespace->dobj.name,
NULL,
cfginfo->rolname,
- false, "TEXT SEARCH CONFIGURATION", q->data, delq->data, NULL,
+ false, "TEXT SEARCH CONFIGURATION", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
cfginfo->dobj.dependencies, cfginfo->dobj.nDeps,
NULL, NULL);
@@ -9220,7 +9250,8 @@ dumpForeignDataWrapper(Archive *fout, FdwInfo *fdwinfo)
NULL,
NULL,
fdwinfo->rolname,
- false, "FOREIGN DATA WRAPPER", q->data, delq->data, NULL,
+ false, "FOREIGN DATA WRAPPER", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
fdwinfo->dobj.dependencies, fdwinfo->dobj.nDeps,
NULL, NULL);
@@ -9298,7 +9329,8 @@ dumpForeignServer(Archive *fout, ForeignServerInfo *srvinfo)
NULL,
NULL,
srvinfo->rolname,
- false, "SERVER", q->data, delq->data, NULL,
+ false, "SERVER", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
srvinfo->dobj.dependencies, srvinfo->dobj.nDeps,
NULL, NULL);
@@ -9393,8 +9425,8 @@ dumpUserMappings(Archive *fout, const char *target,
namespace,
NULL,
owner, false,
- "USER MAPPING", q->data,
- delq->data, NULL,
+ "USER MAPPING", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
&dumpId, 1,
NULL, NULL);
}
@@ -9447,7 +9479,8 @@ dumpACL(Archive *fout, CatalogId objCatId, DumpId objDumpId,
tag, nspname,
NULL,
owner ? owner : "",
- false, "ACL", sql->data, "", NULL,
+ false, "ACL", SECTION_NONE,
+ sql->data, "", NULL,
&(objDumpId), 1,
NULL, NULL);
@@ -9797,7 +9830,8 @@ dumpTableSchema(Archive *fout, TableInfo *tbinfo)
(tbinfo->relkind == RELKIND_VIEW) ? NULL : tbinfo->reltablespace,
tbinfo->rolname,
(strcmp(reltypename, "TABLE") == 0) ? tbinfo->hasoids : false,
- reltypename, q->data, delq->data, NULL,
+ reltypename, SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
tbinfo->dobj.dependencies, tbinfo->dobj.nDeps,
NULL, NULL);
@@ -9863,7 +9897,8 @@ dumpAttrDef(Archive *fout, AttrDefInfo *adinfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname,
- false, "DEFAULT", q->data, delq->data, NULL,
+ false, "DEFAULT", SECTION_PRE_DATA,
+ q->data, delq->data, NULL,
adinfo->dobj.dependencies, adinfo->dobj.nDeps,
NULL, NULL);
@@ -9956,7 +9991,8 @@ dumpIndex(Archive *fout, IndxInfo *indxinfo)
tbinfo->dobj.namespace->dobj.name,
indxinfo->tablespace,
tbinfo->rolname, false,
- "INDEX", q->data, delq->data, NULL,
+ "INDEX", SECTION_POST_DATA,
+ q->data, delq->data, NULL,
indxinfo->dobj.dependencies, indxinfo->dobj.nDeps,
NULL, NULL);
}
@@ -10059,7 +10095,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
tbinfo->dobj.namespace->dobj.name,
indxinfo->tablespace,
tbinfo->rolname, false,
- "CONSTRAINT", q->data, delq->data, NULL,
+ "CONSTRAINT", SECTION_POST_DATA,
+ q->data, delq->data, NULL,
coninfo->dobj.dependencies, coninfo->dobj.nDeps,
NULL, NULL);
}
@@ -10091,7 +10128,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
- "FK CONSTRAINT", q->data, delq->data, NULL,
+ "FK CONSTRAINT", SECTION_POST_DATA,
+ q->data, delq->data, NULL,
coninfo->dobj.dependencies, coninfo->dobj.nDeps,
NULL, NULL);
}
@@ -10125,7 +10163,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
- "CHECK CONSTRAINT", q->data, delq->data, NULL,
+ "CHECK CONSTRAINT", SECTION_POST_DATA,
+ q->data, delq->data, NULL,
coninfo->dobj.dependencies, coninfo->dobj.nDeps,
NULL, NULL);
}
@@ -10160,7 +10199,8 @@ dumpConstraint(Archive *fout, ConstraintInfo *coninfo)
tinfo->dobj.namespace->dobj.name,
NULL,
tinfo->rolname, false,
- "CHECK CONSTRAINT", q->data, delq->data, NULL,
+ "CHECK CONSTRAINT", SECTION_POST_DATA,
+ q->data, delq->data, NULL,
coninfo->dobj.dependencies, coninfo->dobj.nDeps,
NULL, NULL);
}
@@ -10433,7 +10473,8 @@ dumpSequence(Archive *fout, TableInfo *tbinfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname,
- false, "SEQUENCE", query->data, delqry->data, NULL,
+ false, "SEQUENCE", SECTION_PRE_DATA,
+ query->data, delqry->data, NULL,
tbinfo->dobj.dependencies, tbinfo->dobj.nDeps,
NULL, NULL);
@@ -10468,7 +10509,8 @@ dumpSequence(Archive *fout, TableInfo *tbinfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname,
- false, "SEQUENCE OWNED BY", query->data, "", NULL,
+ false, "SEQUENCE OWNED BY", SECTION_PRE_DATA,
+ query->data, "", NULL,
&(tbinfo->dobj.dumpId), 1,
NULL, NULL);
}
@@ -10495,7 +10537,8 @@ dumpSequence(Archive *fout, TableInfo *tbinfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname,
- false, "SEQUENCE SET", query->data, "", NULL,
+ false, "SEQUENCE SET", SECTION_PRE_DATA,
+ query->data, "", NULL,
&(tbinfo->dobj.dumpId), 1,
NULL, NULL);
}
@@ -10691,7 +10734,8 @@ dumpTrigger(Archive *fout, TriggerInfo *tginfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
- "TRIGGER", query->data, delqry->data, NULL,
+ "TRIGGER", SECTION_POST_DATA,
+ query->data, delqry->data, NULL,
tginfo->dobj.dependencies, tginfo->dobj.nDeps,
NULL, NULL);
@@ -10810,7 +10854,8 @@ dumpRule(Archive *fout, RuleInfo *rinfo)
tbinfo->dobj.namespace->dobj.name,
NULL,
tbinfo->rolname, false,
- "RULE", cmd->data, delcmd->data, NULL,
+ "RULE", SECTION_POST_DATA,
+ cmd->data, delcmd->data, NULL,
rinfo->dobj.dependencies, rinfo->dobj.nDeps,
NULL, NULL);
diff --git a/src/bin/pg_dump/pg_restore.c b/src/bin/pg_dump/pg_restore.c
index 1d0b3c42c20..cee5f9e6208 100644
--- a/src/bin/pg_dump/pg_restore.c
+++ b/src/bin/pg_dump/pg_restore.c
@@ -34,7 +34,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.91 2009/01/06 17:18:11 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.92 2009/02/02 20:07:37 adunstan Exp $
*
*-------------------------------------------------------------------------
*/
@@ -93,6 +93,7 @@ main(int argc, char **argv)
{"ignore-version", 0, NULL, 'i'},
{"index", 1, NULL, 'I'},
{"list", 0, NULL, 'l'},
+ {"multi-thread", 1, NULL, 'm'},
{"no-privileges", 0, NULL, 'x'},
{"no-acl", 0, NULL, 'x'},
{"no-owner", 0, NULL, 'O'},
@@ -141,7 +142,7 @@ main(int argc, char **argv)
}
}
- while ((c = getopt_long(argc, argv, "acCd:ef:F:h:iI:lL:n:Op:P:RsS:t:T:U:vWxX:1",
+ while ((c = getopt_long(argc, argv, "acCd:ef:F:h:iI:lL:m:n:Op:P:RsS:t:T:U:vWxX:1",
cmdopts, NULL)) != -1)
{
switch (c)
@@ -184,6 +185,10 @@ main(int argc, char **argv)
opts->tocFile = strdup(optarg);
break;
+ case 'm': /* number of restore threads */
+ opts->number_of_threads = atoi(optarg);
+ break;
+
case 'n': /* Dump data for this schema only */
opts->schemaNames = strdup(optarg);
break;
@@ -269,7 +274,10 @@ main(int argc, char **argv)
break;
case 0:
- /* This covers the long options equivalent to -X xxx. */
+ /*
+ * This covers the long options without a short equivalent,
+ * including those equivalent to -X xxx.
+ */
break;
case 2: /* SET ROLE */
@@ -301,6 +309,14 @@ main(int argc, char **argv)
opts->useDB = 1;
}
+ /* Can't do single-txn mode with multiple connections */
+ if (opts->single_txn && opts->number_of_threads > 1)
+ {
+ fprintf(stderr, _("%s: cannot specify both --single-transaction and multiple threads\n"),
+ progname);
+ exit(1);
+ }
+
opts->disable_triggers = disable_triggers;
opts->noDataForFailedTables = no_data_for_failed_tables;
opts->noTablespace = outputNoTablespaces;
@@ -308,10 +324,8 @@ main(int argc, char **argv)
if (opts->formatName)
{
-
switch (opts->formatName[0])
{
-
case 'c':
case 'C':
opts->format = archCustom;
@@ -396,6 +410,7 @@ usage(const char *progname)
printf(_(" -I, --index=NAME restore named index\n"));
printf(_(" -L, --use-list=FILENAME use specified table of contents for ordering\n"
" output from this file\n"));
+ printf(_(" -m, --multi-thread=NUM use this many parallel connections to restore\n"));
printf(_(" -n, --schema=NAME restore only objects in this schema\n"));
printf(_(" -O, --no-owner skip restoration of object ownership\n"));
printf(_(" -P, --function=NAME(args)\n"
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-21 10:27:56 +0000