diff options
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.h')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.h | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.h b/contrib/postgres_fdw/postgres_fdw.h index 8956cd2cf1c..f243de8d623 100644 --- a/contrib/postgres_fdw/postgres_fdw.h +++ b/contrib/postgres_fdw/postgres_fdw.h @@ -20,6 +20,41 @@ #include "libpq-fe.h" +/* + * FDW-specific planner information kept in RelOptInfo.fdw_private for a + * foreign table. This information is collected by postgresGetForeignRelSize. + */ +typedef struct PgFdwRelationInfo +{ + /* baserestrictinfo clauses, broken down into safe and unsafe subsets. */ + List *remote_conds; + List *local_conds; + + /* Bitmap of attr numbers we need to fetch from the remote server. */ + Bitmapset *attrs_used; + + /* Cost and selectivity of local_conds. */ + QualCost local_conds_cost; + Selectivity local_conds_sel; + + /* Estimated size and cost for a scan with baserestrictinfo quals. */ + double rows; + int width; + Cost startup_cost; + Cost total_cost; + + /* Options extracted from catalogs. */ + bool use_remote_estimate; + Cost fdw_startup_cost; + Cost fdw_tuple_cost; + List *shippable_extensions; /* OIDs of whitelisted extensions */ + + /* Cached catalog information. */ + ForeignTable *table; + ForeignServer *server; + UserMapping *user; /* only set in use_remote_estimate mode */ +} PgFdwRelationInfo; + /* in postgres_fdw.c */ extern int set_transmission_modes(void); extern void reset_transmission_modes(int nestlevel); @@ -37,6 +72,8 @@ extern void pgfdw_report_error(int elevel, PGresult *res, PGconn *conn, extern int ExtractConnectionOptions(List *defelems, const char **keywords, const char **values); +extern List *ExtractExtensionList(const char *extensionsString, + bool warnOnMissing); /* in deparse.c */ extern void classifyConditions(PlannerInfo *root, @@ -76,6 +113,10 @@ extern void deparseAnalyzeSql(StringInfo buf, Relation rel, extern void deparseStringLiteral(StringInfo buf, const char *val); extern Expr *find_em_expr_for_rel(EquivalenceClass *ec, RelOptInfo *rel); extern void appendOrderByClause(StringInfo buf, PlannerInfo *root, - RelOptInfo *baserel, List *pathkeys); + RelOptInfo *baserel, List *pathkeys); + +/* in shippable.c */ +extern bool is_builtin(Oid objectId); +extern bool is_shippable(Oid objectId, Oid classId, PgFdwRelationInfo *fpinfo); #endif /* POSTGRES_FDW_H */ |