aboutsummaryrefslogtreecommitdiff
path: root/src/interfaces/odbc/parse.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/interfaces/odbc/parse.c')
-rw-r--r--src/interfaces/odbc/parse.c578
1 files changed, 238 insertions, 340 deletions
diff --git a/src/interfaces/odbc/parse.c b/src/interfaces/odbc/parse.c
index db0b3eba862..690a902ec4b 100644
--- a/src/interfaces/odbc/parse.c
+++ b/src/interfaces/odbc/parse.c
@@ -1,19 +1,20 @@
-/* Module: parse.c
+
+/* Module: parse.c
*
- * Description: This module contains routines related to parsing SQL statements.
- * This can be useful for two reasons:
+ * Description: This module contains routines related to parsing SQL statements.
+ * This can be useful for two reasons:
*
- * 1. So the query does not actually have to be executed to return data about it
+ * 1. So the query does not actually have to be executed to return data about it
*
- * 2. To be able to return information about precision, nullability, aliases, etc.
- * in the functions SQLDescribeCol and SQLColAttributes. Currently, Postgres
- * doesn't return any information about these things in a query.
+ * 2. To be able to return information about precision, nullability, aliases, etc.
+ * in the functions SQLDescribeCol and SQLColAttributes. Currently, Postgres
+ * doesn't return any information about these things in a query.
*
- * Classes: none
+ * Classes: none
*
- * API functions: none
+ * API functions: none
*
- * Comments: See "notice.txt" for copyright and license information.
+ * Comments: See "notice.txt" for copyright and license information.
*
*/
@@ -28,7 +29,7 @@
#ifndef WIN32
#ifndef HAVE_STRICMP
-#define stricmp(s1,s2) strcasecmp(s1,s2)
+#define stricmp(s1,s2) strcasecmp(s1,s2)
#define strnicmp(s1,s2,n) strncasecmp(s1,s2,n)
#endif
#endif
@@ -37,17 +38,16 @@
#define TAB_INCR 8
#define COL_INCR 16
-char *getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dquote, char *numeric);
-void getColInfo(COL_INFO *col_info, FIELD_INFO *fi, int k);
-char searchColInfo(COL_INFO *col_info, FIELD_INFO *fi);
+char *getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dquote, char *numeric);
+void getColInfo(COL_INFO *col_info, FIELD_INFO *fi, int k);
+char searchColInfo(COL_INFO *col_info, FIELD_INFO *fi);
char *
getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dquote, char *numeric)
{
- int i = 0;
- int out = 0;
- char qc,
- in_escape = FALSE;
+int i = 0;
+int out = 0;
+char qc, in_escape = FALSE;
if (smax <= 1)
return NULL;
@@ -55,54 +55,44 @@ getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dqu
smax--;
/* skip leading delimiters */
- while (isspace((unsigned char) s[i]) || s[i] == ',')
- {
+ while (isspace((unsigned char) s[i]) || s[i] == ',') {
/* mylog("skipping '%c'\n", s[i]); */
i++;
}
- if (s[0] == '\0')
- {
+ if (s[0] == '\0') {
token[0] = '\0';
return NULL;
}
- if (quote)
- *quote = FALSE;
- if (dquote)
- *dquote = FALSE;
- if (numeric)
- *numeric = FALSE;
+ if (quote) *quote = FALSE;
+ if (dquote) *dquote = FALSE;
+ if (numeric) *numeric = FALSE;
/* get the next token */
- while (!isspace((unsigned char) s[i]) && s[i] != ',' &&
- s[i] != '\0' && out != smax)
- {
- /* Handle quoted stuff */
- if (out == 0 && (s[i] == '\"' || s[i] == '\''))
- {
+ while ( ! isspace((unsigned char) s[i]) && s[i] != ',' &&
+ s[i] != '\0' && out != smax) {
+
+ /* Handle quoted stuff */
+ if ( out == 0 && (s[i] == '\"' || s[i] == '\'')) {
qc = s[i];
- if (qc == '\"')
- {
- if (dquote)
- *dquote = TRUE;
+ if (qc == '\"') {
+ if (dquote) *dquote = TRUE;
}
- if (qc == '\'')
- {
- if (quote)
- *quote = TRUE;
+ if (qc == '\'') {
+ if (quote) *quote = TRUE;
}
- i++; /* dont return the quote */
- while (s[i] != '\0' && out != smax)
- {
- if (s[i] == qc && !in_escape)
+ i++; /* dont return the quote */
+ while (s[i] != '\0' && out != smax) {
+ if (s[i] == qc && ! in_escape) {
break;
- if (s[i] == '\\' && !in_escape)
+ }
+ if (s[i] == '\\' && ! in_escape) {
in_escape = TRUE;
- else
- {
- in_escape = FALSE;
+ }
+ else {
+ in_escape = FALSE;
token[out++] = s[i];
}
i++;
@@ -112,24 +102,20 @@ getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dqu
break;
}
- /* Check for numeric literals */
- if (out == 0 && isdigit((unsigned char) s[i]))
- {
- if (numeric)
- *numeric = TRUE;
+ /* Check for numeric literals */
+ if ( out == 0 && isdigit((unsigned char) s[i])) {
+ if (numeric) *numeric = TRUE;
token[out++] = s[i++];
- while (isalnum((unsigned char) s[i]) || s[i] == '.')
+ while ( isalnum((unsigned char) s[i]) || s[i] == '.')
token[out++] = s[i++];
break;
}
- if (ispunct((unsigned char) s[i]) && s[i] != '_')
- {
+ if ( ispunct((unsigned char) s[i]) && s[i] != '_') {
mylog("got ispunct: s[%d] = '%c'\n", i, s[i]);
- if (out == 0)
- {
+ if (out == 0) {
token[out++] = s[i++];
break;
}
@@ -147,30 +133,25 @@ getNextToken(char *s, char *token, int smax, char *delim, char *quote, char *dqu
token[out] = '\0';
- /* find the delimiter */
- while (isspace((unsigned char) s[i]))
+ /* find the delimiter */
+ while ( isspace((unsigned char) s[i]))
i++;
- /* return the most priority delimiter */
- if (s[i] == ',')
- {
- if (delim)
- *delim = s[i];
+ /* return the most priority delimiter */
+ if (s[i] == ',') {
+ if (delim) *delim = s[i];
}
- else if (s[i] == '\0')
- {
- if (delim)
- *delim = '\0';
+ else if (s[i] == '\0') {
+ if (delim) *delim = '\0';
}
- else
- {
- if (delim)
- *delim = ' ';
+ else {
+ if (delim) *delim = ' ';
}
/* skip trailing blanks */
- while (isspace((unsigned char) s[i]))
+ while ( isspace((unsigned char) s[i])) {
i++;
+ }
return &s[i];
}
@@ -201,25 +182,23 @@ getColInfo(COL_INFO *col_info, FIELD_INFO *fi, int k)
if (fi->name[0] == '\0')
strcpy(fi->name, QR_get_value_manual(col_info->result, k, 3));
- fi->type = atoi(QR_get_value_manual(col_info->result, k, 13));
- fi->precision = atoi(QR_get_value_manual(col_info->result, k, 6));
- fi->length = atoi(QR_get_value_manual(col_info->result, k, 7));
- fi->nullable = atoi(QR_get_value_manual(col_info->result, k, 10));
- fi->display_size = atoi(QR_get_value_manual(col_info->result, k, 12));
+ fi->type = atoi( QR_get_value_manual(col_info->result, k, 13));
+ fi->precision = atoi( QR_get_value_manual(col_info->result, k, 6));
+ fi->length = atoi( QR_get_value_manual(col_info->result, k, 7));
+ fi->nullable = atoi( QR_get_value_manual(col_info->result, k, 10));
+ fi->display_size = atoi( QR_get_value_manual(col_info->result, k, 12));
}
char
searchColInfo(COL_INFO *col_info, FIELD_INFO *fi)
{
- int k;
- char *col;
+int k;
+char *col;
- for (k = 0; k < QR_get_num_tuples(col_info->result); k++)
- {
+ for (k = 0; k < QR_get_num_tuples(col_info->result); k++) {
col = QR_get_value_manual(col_info->result, k, 3);
- if (!strcmp(col, fi->name))
- {
+ if ( ! strcmp(col, fi->name)) {
getColInfo(col_info, fi, k);
mylog("PARSE: searchColInfo: \n");
@@ -234,37 +213,20 @@ searchColInfo(COL_INFO *col_info, FIELD_INFO *fi)
char
parse_statement(StatementClass *stmt)
{
- static char *func = "parse_statement";
- char token[256];
- char delim,
- quote,
- dquote,
- numeric,
- unquoted;
- char *ptr;
- char in_select = FALSE,
- in_distinct = FALSE,
- in_on = FALSE,
- in_from = FALSE,
- in_where = FALSE,
- in_table = FALSE;
- char in_field = FALSE,
- in_expr = FALSE,
- in_func = FALSE,
- in_dot = FALSE,
- in_as = FALSE;
- int j,
- i,
- k = 0,
- n,
- blevel = 0;
- FIELD_INFO **fi;
- TABLE_INFO **ti;
- char parse;
- ConnectionClass *conn = stmt->hdbc;
- HSTMT hcol_stmt;
- StatementClass *col_stmt;
- RETCODE result;
+static char *func="parse_statement";
+char token[256];
+char delim, quote, dquote, numeric, unquoted;
+char *ptr;
+char in_select = FALSE, in_distinct = FALSE, in_on = FALSE, in_from = FALSE, in_where = FALSE, in_table = FALSE;
+char in_field = FALSE, in_expr = FALSE, in_func = FALSE, in_dot = FALSE, in_as = FALSE;
+int j, i, k = 0, n, blevel = 0;
+FIELD_INFO **fi;
+TABLE_INFO **ti;
+char parse;
+ConnectionClass *conn = stmt->hdbc;
+HSTMT hcol_stmt;
+StatementClass *col_stmt;
+RETCODE result;
mylog("%s: entering...\n", func);
@@ -276,38 +238,34 @@ parse_statement(StatementClass *stmt)
stmt->nfld = 0;
stmt->ntab = 0;
- while ((ptr = getNextToken(ptr, token, sizeof(token), &delim, &quote, &dquote, &numeric)) != NULL)
- {
- unquoted = !(quote || dquote);
+ while ((ptr = getNextToken(ptr, token, sizeof(token), &delim, &quote, &dquote, &numeric)) != NULL) {
+
+ unquoted = ! ( quote || dquote );
mylog("unquoted=%d, quote=%d, dquote=%d, numeric=%d, delim='%c', token='%s', ptr='%s'\n", unquoted, quote, dquote, numeric, delim, token, ptr);
- if (unquoted && !stricmp(token, "select"))
- {
+ if ( unquoted && ! stricmp(token, "select")) {
in_select = TRUE;
mylog("SELECT\n");
continue;
}
- if (unquoted && in_select && !stricmp(token, "distinct"))
- {
+ if ( unquoted && in_select && ! stricmp(token, "distinct")) {
in_distinct = TRUE;
mylog("DISTINCT\n");
continue;
}
- if (unquoted && !stricmp(token, "into"))
- {
+ if ( unquoted && ! stricmp(token, "into")) {
in_select = FALSE;
mylog("INTO\n");
continue;
}
- if (unquoted && !stricmp(token, "from"))
- {
+ if ( unquoted && ! stricmp(token, "from")) {
in_select = FALSE;
in_from = TRUE;
@@ -315,12 +273,12 @@ parse_statement(StatementClass *stmt)
continue;
}
- if (unquoted && (!stricmp(token, "where") ||
- !stricmp(token, "union") ||
- !stricmp(token, "order") ||
- !stricmp(token, "group") ||
- !stricmp(token, "having")))
- {
+ if ( unquoted && (! stricmp(token, "where") ||
+ ! stricmp(token, "union") ||
+ ! stricmp(token, "order") ||
+ ! stricmp(token, "group") ||
+ ! stricmp(token, "having"))) {
+
in_select = FALSE;
in_from = FALSE;
in_where = TRUE;
@@ -329,52 +287,44 @@ parse_statement(StatementClass *stmt)
break;
}
- if (in_select)
- {
- if (in_distinct)
- {
+ if (in_select) {
+
+ if ( in_distinct) {
mylog("in distinct\n");
- if (unquoted && !stricmp(token, "on"))
- {
+ if (unquoted && ! stricmp(token, "on")) {
in_on = TRUE;
mylog("got on\n");
continue;
}
- if (in_on)
- {
+ if (in_on) {
in_distinct = FALSE;
in_on = FALSE;
- continue; /* just skip the unique on field */
+ continue; /* just skip the unique on field */
}
mylog("done distinct\n");
in_distinct = FALSE;
}
- if (in_expr || in_func)
- { /* just eat the expression */
+ if ( in_expr || in_func) { /* just eat the expression */
mylog("in_expr=%d or func=%d\n", in_expr, in_func);
if (quote || dquote)
continue;
- if (in_expr && blevel == 0 && delim == ',')
- {
+ if (in_expr && blevel == 0 && delim == ',') {
mylog("**** in_expr and Got comma\n");
in_expr = FALSE;
in_field = FALSE;
}
- else if (token[0] == '(')
- {
+ else if (token[0] == '(') {
blevel++;
mylog("blevel++ = %d\n", blevel);
}
- else if (token[0] == ')')
- {
+ else if (token[0] == ')') {
blevel--;
mylog("blevel-- = %d\n", blevel);
- if (delim == ',')
- {
+ if (delim==',') {
in_func = FALSE;
in_expr = FALSE;
in_field = FALSE;
@@ -383,49 +333,43 @@ parse_statement(StatementClass *stmt)
continue;
}
- if (!in_field)
- {
- if (!token[0])
+ if ( ! in_field) {
+
+ if ( ! token[0])
continue;
- if (!(stmt->nfld % FLD_INCR))
- {
+ if ( ! (stmt->nfld % FLD_INCR)) {
mylog("reallocing at nfld=%d\n", stmt->nfld);
fi = (FIELD_INFO **) realloc(fi, (stmt->nfld + FLD_INCR) * sizeof(FIELD_INFO *));
- if (!fi)
- {
+ if ( ! fi) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
stmt->fi = fi;
}
- fi[stmt->nfld] = (FIELD_INFO *) malloc(sizeof(FIELD_INFO));
- if (fi[stmt->nfld] == NULL)
- {
+ fi[stmt->nfld] = (FIELD_INFO *) malloc( sizeof(FIELD_INFO));
+ if (fi[stmt->nfld] == NULL) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
- /* Initialize the field info */
+ /* Initialize the field info */
memset(fi[stmt->nfld], 0, sizeof(FIELD_INFO));
- /* double quotes are for qualifiers */
+ /* double quotes are for qualifiers */
if (dquote)
fi[stmt->nfld]->dquote = TRUE;
- if (quote)
- {
+ if (quote) {
fi[stmt->nfld++]->quote = TRUE;
continue;
}
- else if (numeric)
- {
+ else if (numeric) {
mylog("**** got numeric: nfld = %d\n", stmt->nfld);
fi[stmt->nfld]->numeric = TRUE;
}
- else if (token[0] == '(')
- { /* expression */
+ else if (token[0] == '(') { /* expression */
mylog("got EXPRESSION\n");
fi[stmt->nfld++]->expr = TRUE;
in_expr = TRUE;
@@ -433,34 +377,33 @@ parse_statement(StatementClass *stmt)
continue;
}
- else
- {
+ else {
strcpy(fi[stmt->nfld]->name, token);
fi[stmt->nfld]->dot[0] = '\0';
}
mylog("got field='%s', dot='%s'\n", fi[stmt->nfld]->name, fi[stmt->nfld]->dot);
- if (delim == ',')
+ if (delim == ',') {
mylog("comma (1)\n");
- else
+ }
+ else {
in_field = TRUE;
+ }
stmt->nfld++;
continue;
}
/**************************/
- /* We are in a field now */
+ /* We are in a field now */
/**************************/
- if (in_dot)
- {
+ if (in_dot) {
stmt->nfld--;
strcpy(fi[stmt->nfld]->dot, fi[stmt->nfld]->name);
strcpy(fi[stmt->nfld]->name, token);
stmt->nfld++;
in_dot = FALSE;
- if (delim == ',')
- {
+ if (delim == ',') {
mylog("in_dot: got comma\n");
in_field = FALSE;
}
@@ -468,8 +411,7 @@ parse_statement(StatementClass *stmt)
continue;
}
- if (in_as)
- {
+ if (in_as) {
stmt->nfld--;
strcpy(fi[stmt->nfld]->alias, token);
mylog("alias for field '%s' is '%s'\n", fi[stmt->nfld]->name, fi[stmt->nfld]->alias);
@@ -478,67 +420,58 @@ parse_statement(StatementClass *stmt)
stmt->nfld++;
- if (delim == ',')
+ if (delim == ',') {
mylog("comma(2)\n");
+ }
continue;
}
- /* Function */
- if (token[0] == '(')
- {
+ /* Function */
+ if (token[0] == '(') {
in_func = TRUE;
blevel = 1;
- fi[stmt->nfld - 1]->func = TRUE;
-
- /*
- * name will have the function name -- maybe useful some
- * day
- */
- mylog("**** got function = '%s'\n", fi[stmt->nfld - 1]->name);
+ fi[stmt->nfld-1]->func = TRUE;
+ /* name will have the function name -- maybe useful some day */
+ mylog("**** got function = '%s'\n", fi[stmt->nfld-1]->name);
continue;
}
- if (token[0] == '.')
- {
- in_dot = TRUE;
+ if (token[0] == '.') {
+ in_dot = TRUE;
mylog("got dot\n");
continue;
}
- if (!stricmp(token, "as"))
- {
+ if ( ! stricmp(token, "as")) {
in_as = TRUE;
mylog("got AS\n");
continue;
}
- /* otherwise, it's probably an expression */
+ /* otherwise, it's probably an expression */
in_expr = TRUE;
- fi[stmt->nfld - 1]->expr = TRUE;
- fi[stmt->nfld - 1]->name[0] = '\0';
+ fi[stmt->nfld-1]->expr = TRUE;
+ fi[stmt->nfld-1]->name[0] = '\0';
mylog("*** setting expression\n");
+
}
- if (in_from)
- {
- if (!in_table)
- {
- if (!token[0])
+ if (in_from) {
+
+ if ( ! in_table) {
+ if ( ! token[0])
continue;
- if (!(stmt->ntab % TAB_INCR))
- {
+ if ( ! (stmt->ntab % TAB_INCR)) {
ti = (TABLE_INFO **) realloc(ti, (stmt->ntab + TAB_INCR) * sizeof(TABLE_INFO *));
- if (!ti)
- {
+ if ( ! ti) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
stmt->ti = ti;
}
ti[stmt->ntab] = (TABLE_INFO *) malloc(sizeof(TABLE_INFO));
- if (ti[stmt->ntab] == NULL)
- {
+ if (ti[stmt->ntab] == NULL) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
@@ -548,60 +481,57 @@ parse_statement(StatementClass *stmt)
strcpy(ti[stmt->ntab]->name, token);
mylog("got table = '%s'\n", ti[stmt->ntab]->name);
- if (delim == ',')
+ if (delim == ',') {
mylog("more than 1 tables\n");
- else
+ }
+ else {
in_table = TRUE;
+ }
stmt->ntab++;
continue;
}
- strcpy(ti[stmt->ntab - 1]->alias, token);
- mylog("alias for table '%s' is '%s'\n", ti[stmt->ntab - 1]->name, ti[stmt->ntab - 1]->alias);
+ strcpy(ti[stmt->ntab-1]->alias, token);
+ mylog("alias for table '%s' is '%s'\n", ti[stmt->ntab-1]->name, ti[stmt->ntab-1]->alias);
in_table = FALSE;
- if (delim == ',')
+ if (delim == ',') {
mylog("more than 1 tables\n");
+ }
}
}
/*************************************************/
- /* Resolve any possible field names with tables */
+ /* Resolve any possible field names with tables */
/*************************************************/
parse = TRUE;
- /* Resolve field names with tables */
- for (i = 0; i < stmt->nfld; i++)
- {
- if (fi[i]->func || fi[i]->expr || fi[i]->numeric)
- {
+ /* Resolve field names with tables */
+ for (i = 0; i < stmt->nfld; i++) {
+
+ if (fi[i]->func || fi[i]->expr || fi[i]->numeric) {
fi[i]->ti = NULL;
fi[i]->type = -1;
parse = FALSE;
continue;
}
- else if (fi[i]->quote)
- { /* handle as text */
+ else if (fi[i]->quote) { /* handle as text */
fi[i]->ti = NULL;
fi[i]->type = PG_TYPE_TEXT;
fi[i]->precision = 0;
continue;
- }
+ }
- /* it's a dot, resolve to table or alias */
- else if (fi[i]->dot[0])
- {
- for (k = 0; k < stmt->ntab; k++)
- {
- if (!stricmp(ti[k]->name, fi[i]->dot))
- {
+ /* it's a dot, resolve to table or alias */
+ else if (fi[i]->dot[0]) {
+ for (k = 0; k < stmt->ntab; k++) {
+ if ( ! stricmp(ti[k]->name, fi[i]->dot)) {
fi[i]->ti = ti[k];
break;
}
- else if (!stricmp(ti[k]->alias, fi[i]->dot))
- {
+ else if ( ! stricmp(ti[k]->alias, fi[i]->dot)) {
fi[i]->ti = ti[k];
break;
}
@@ -614,45 +544,41 @@ parse_statement(StatementClass *stmt)
mylog("--------------------------------------------\n");
mylog("nfld=%d, ntab=%d\n", stmt->nfld, stmt->ntab);
- for (i = 0; i < stmt->nfld; i++)
- {
+ for (i=0; i < stmt->nfld; i++) {
mylog("Field %d: expr=%d, func=%d, quote=%d, dquote=%d, numeric=%d, name='%s', alias='%s', dot='%s'\n", i, fi[i]->expr, fi[i]->func, fi[i]->quote, fi[i]->dquote, fi[i]->numeric, fi[i]->name, fi[i]->alias, fi[i]->dot);
if (fi[i]->ti)
- mylog(" ----> table_name='%s', table_alias='%s'\n", fi[i]->ti->name, fi[i]->ti->alias);
+ mylog(" ----> table_name='%s', table_alias='%s'\n", fi[i]->ti->name, fi[i]->ti->alias);
}
- for (i = 0; i < stmt->ntab; i++)
+ for (i=0; i < stmt->ntab; i++) {
mylog("Table %d: name='%s', alias='%s'\n", i, ti[i]->name, ti[i]->alias);
+ }
/******************************************************/
- /* Now save the SQLColumns Info for the parse tables */
+ /* Now save the SQLColumns Info for the parse tables */
/******************************************************/
- /* Call SQLColumns for each table and store the result */
- for (i = 0; i < stmt->ntab; i++)
- {
- /* See if already got it */
- char found = FALSE;
+ /* Call SQLColumns for each table and store the result */
+ for (i = 0; i < stmt->ntab; i++) {
- for (k = 0; k < conn->ntables; k++)
- {
- if (!stricmp(conn->col_info[k]->name, ti[i]->name))
- {
+ /* See if already got it */
+ char found = FALSE;
+ for (k = 0; k < conn->ntables; k++) {
+ if ( ! stricmp(conn->col_info[k]->name, ti[i]->name)) {
mylog("FOUND col_info table='%s'\n", ti[i]->name);
found = TRUE;
break;
}
}
+
+ if ( ! found) {
- if (!found)
- {
mylog("PARSE: Getting SQLColumns for table[%d]='%s'\n", i, ti[i]->name);
- result = SQLAllocStmt(stmt->hdbc, &hcol_stmt);
- if ((result != SQL_SUCCESS) && (result != SQL_SUCCESS_WITH_INFO))
- {
+ result = SQLAllocStmt( stmt->hdbc, &hcol_stmt);
+ if((result != SQL_SUCCESS) && (result != SQL_SUCCESS_WITH_INFO)) {
stmt->errormsg = "SQLAllocStmt failed in parse_statement for columns.";
stmt->errornumber = STMT_NO_MEMORY_ERROR;
stmt->parse_status = STMT_PARSE_FATAL;
@@ -662,20 +588,18 @@ parse_statement(StatementClass *stmt)
col_stmt = (StatementClass *) hcol_stmt;
col_stmt->internal = TRUE;
- result = SQLColumns(hcol_stmt, "", 0, "", 0,
+ result = SQLColumns(hcol_stmt, "", 0, "", 0,
ti[i]->name, (SWORD) strlen(ti[i]->name), "", 0);
-
+
mylog(" Past SQLColumns\n");
- if (result == SQL_SUCCESS)
- {
+ if (result == SQL_SUCCESS) {
mylog(" Success\n");
- if (!(conn->ntables % COL_INCR))
- {
+ if ( ! (conn->ntables % COL_INCR)) {
+
mylog("PARSE: Allocing col_info at ntables=%d\n", conn->ntables);
conn->col_info = (COL_INFO **) realloc(conn->col_info, (conn->ntables + COL_INCR) * sizeof(COL_INFO *));
- if (!conn->col_info)
- {
+ if ( ! conn->col_info) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
@@ -683,23 +607,18 @@ parse_statement(StatementClass *stmt)
mylog("PARSE: malloc at conn->col_info[%d]\n", conn->ntables);
conn->col_info[conn->ntables] = (COL_INFO *) malloc(sizeof(COL_INFO));
- if (!conn->col_info[conn->ntables])
- {
+ if ( ! conn->col_info[conn->ntables]) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
- /*
- * Store the table name and the SQLColumns result
- * structure
- */
+ /* Store the table name and the SQLColumns result structure */
strcpy(conn->col_info[conn->ntables]->name, ti[i]->name);
conn->col_info[conn->ntables]->result = col_stmt->result;
- /*
- * The connection will now free the result structures, so
- * make sure that the statement doesn't free it
- */
+ /* The connection will now free the result structures, so make
+ sure that the statement doesn't free it
+ */
col_stmt->result = NULL;
conn->ntables++;
@@ -707,14 +626,13 @@ parse_statement(StatementClass *stmt)
SQLFreeStmt(hcol_stmt, SQL_DROP);
mylog("Created col_info table='%s', ntables=%d\n", ti[i]->name, conn->ntables);
}
- else
- {
+ else {
SQLFreeStmt(hcol_stmt, SQL_DROP);
break;
}
}
- /* Associate a table from the statement with a SQLColumn info */
+ /* Associate a table from the statement with a SQLColumn info */
ti[i]->col_info = conn->col_info[k];
mylog("associate col_info: i=%d, k=%d\n", i, k);
}
@@ -723,112 +641,96 @@ parse_statement(StatementClass *stmt)
mylog("Done SQLColumns\n");
/******************************************************/
- /* Now resolve the fields to point to column info */
+ /* Now resolve the fields to point to column info */
/******************************************************/
- for (i = 0; i < stmt->nfld;)
- {
- /* Dont worry about functions or quotes */
- if (fi[i]->func || fi[i]->quote || fi[i]->numeric)
- {
+ for (i = 0; i < stmt->nfld;) {
+
+ /* Dont worry about functions or quotes */
+ if (fi[i]->func || fi[i]->quote || fi[i]->numeric) {
i++;
continue;
}
- /* Stars get expanded to all fields in the table */
- else if (fi[i]->name[0] == '*')
- {
- char do_all_tables;
- int total_cols,
- old_size,
- need,
- cols;
+ /* Stars get expanded to all fields in the table */
+ else if (fi[i]->name[0] == '*') {
+
+ char do_all_tables;
+ int total_cols, old_size, need, cols;
mylog("expanding field %d\n", i);
- total_cols = 0;
+ total_cols = 0;
- if (fi[i]->ti) /* The star represents only the qualified
- * table */
+ if (fi[i]->ti) /* The star represents only the qualified table */
total_cols = QR_get_num_tuples(fi[i]->ti->col_info->result);
- else
- { /* The star represents all tables */
+ else { /* The star represents all tables */
- /* Calculate the total number of columns after expansion */
- for (k = 0; k < stmt->ntab; k++)
+ /* Calculate the total number of columns after expansion */
+ for (k = 0; k < stmt->ntab; k++) {
total_cols += QR_get_num_tuples(ti[k]->col_info->result);
+ }
}
total_cols--; /* makes up for the star */
- /* Allocate some more field pointers if necessary */
+ /* Allocate some more field pointers if necessary */
/*------------------------------------------------------------- */
old_size = (stmt->nfld / FLD_INCR * FLD_INCR + FLD_INCR);
need = total_cols - (old_size - stmt->nfld);
- mylog("k=%d, total_cols=%d, old_size=%d, need=%d\n", k, total_cols, old_size, need);
-
- if (need > 0)
- {
- int new_size = need / FLD_INCR * FLD_INCR + FLD_INCR;
+ mylog("k=%d, total_cols=%d, old_size=%d, need=%d\n", k,total_cols,old_size,need);
+ if (need > 0) {
+ int new_size = need / FLD_INCR * FLD_INCR + FLD_INCR;
mylog("need more cols: new_size = %d\n", new_size);
fi = (FIELD_INFO **) realloc(fi, (old_size + new_size) * sizeof(FIELD_INFO *));
- if (!fi)
- {
+ if ( ! fi) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
}
/*------------------------------------------------------------- */
-
- /*
- * copy any other fields (if there are any) up past the
- * expansion
- */
- for (j = stmt->nfld - 1; j > i; j--)
- {
+ /* copy any other fields (if there are any) up past the expansion */
+ for (j = stmt->nfld - 1; j > i; j--) {
mylog("copying field %d to %d\n", j, total_cols + j);
fi[total_cols + j] = fi[j];
}
mylog("done copying fields\n");
/*------------------------------------------------------------- */
- /* Set the new number of fields */
+ /* Set the new number of fields */
stmt->nfld += total_cols;
mylog("stmt->nfld now at %d\n", stmt->nfld);
/*------------------------------------------------------------- */
- /* copy the new field info */
+ /* copy the new field info */
do_all_tables = (fi[i]->ti ? FALSE : TRUE);
- for (k = 0; k < (do_all_tables ? stmt->ntab : 1); k++)
- {
+ for (k = 0; k < (do_all_tables ? stmt->ntab : 1); k++) {
+
TABLE_INFO *the_ti = do_all_tables ? ti[k] : fi[i]->ti;
cols = QR_get_num_tuples(the_ti->col_info->result);
- for (n = 0; n < cols; n++)
- {
+ for (n = 0; n < cols; n++) {
mylog("creating field info: n=%d\n", n);
/* skip malloc (already did it for the Star) */
- if (k > 0 || n > 0)
- {
+ if (k > 0 || n > 0) {
mylog("allocating field info at %d\n", n + i);
- fi[n + i] = (FIELD_INFO *) malloc(sizeof(FIELD_INFO));
- if (fi[n + i] == NULL)
- {
+ fi[n + i] = (FIELD_INFO *) malloc( sizeof(FIELD_INFO));
+ if (fi[n + i] == NULL) {
stmt->parse_status = STMT_PARSE_FATAL;
return FALSE;
}
}
- /* Initialize the new space (or the * field) */
+ /* Initialize the new space (or the * field) */
memset(fi[n + i], 0, sizeof(FIELD_INFO));
fi[n + i]->ti = the_ti;
@@ -846,27 +748,22 @@ parse_statement(StatementClass *stmt)
/*------------------------------------------------------------- */
}
- /*
- * We either know which table the field was in because it was
- * qualified with a table name or alias -OR- there was only 1
- * table.
- */
- else if (fi[i]->ti)
- {
- if (!searchColInfo(fi[i]->ti->col_info, fi[i]))
+ /* We either know which table the field was in because it was qualified
+ with a table name or alias -OR- there was only 1 table.
+ */
+ else if (fi[i]->ti) {
+
+ if ( ! searchColInfo(fi[i]->ti->col_info, fi[i]))
parse = FALSE;
i++;
}
- /* Don't know the table -- search all tables in "from" list */
- else
- {
+ /* Don't know the table -- search all tables in "from" list */
+ else {
parse = FALSE;
- for (k = 0; k < stmt->ntab; k++)
- {
- if (searchColInfo(ti[k]->col_info, fi[i]))
- {
+ for (k = 0; k < stmt->ntab; k++) {
+ if ( searchColInfo(ti[k]->col_info, fi[i])) {
fi[i]->ti = ti[k]; /* now know the table */
parse = TRUE;
break;
@@ -877,7 +774,7 @@ parse_statement(StatementClass *stmt)
}
- if (!parse)
+ if ( ! parse)
stmt->parse_status = STMT_PARSE_INCOMPLETE;
else
stmt->parse_status = STMT_PARSE_COMPLETE;
@@ -886,3 +783,4 @@ parse_statement(StatementClass *stmt)
mylog("done parse_statement: parse=%d, parse_status=%d\n", parse, stmt->parse_status);
return parse;
}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-01 02:25:50 +0000