Fix pg_restore to handle the 'set max oid' entry correctly in archives
dumped by pg_dump -o. Per bug report posted by Bruce; fix is from Philip Warner, reviewed by Tom Lane.
This commit is contained in:
Tom Lane
parent
3dfe80243c
commit
bb698c25c7
@ -15,7 +15,7 @@
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*
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*
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*
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*
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* IDENTIFICATION
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.38 2001/11/08 04:05:12 tgl Exp $
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.39 2002/01/18 17:13:50 tgl Exp $
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*
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*
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* Modifications - 28-Jun-2000 - pjw@rhyme.com.au
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* Modifications - 28-Jun-2000 - pjw@rhyme.com.au
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*
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*
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@ -62,6 +62,11 @@
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* backup file; prior version was restoring schema in data-only
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* backup file; prior version was restoring schema in data-only
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* restores. Added enum to make code easier to understand.
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* restores. Added enum to make code easier to understand.
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*
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*
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* Modifications - 18-Jan-2002 - pjw@rhyme.com.au
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* - Modified _tocEntryRequired to handle '<Init>/Max OID' as a special
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* case (ie. as a DATA item) as per bugs reported by Bruce Momjian
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* around 17-Jan-2002.
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*
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*-------------------------------------------------------------------------
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*-------------------------------------------------------------------------
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*/
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*/
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@ -1917,6 +1922,13 @@ _tocEntryRequired(TocEntry *te, RestoreOptions *ropt)
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res = res & ~REQ_DATA;
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res = res & ~REQ_DATA;
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}
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}
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/* Special case: <Init> type with <Max OID> name; this is part of
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* a DATA restore even though it has SQL.
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*/
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if ( ( strcmp(te->desc, "<Init>") == 0 ) && ( strcmp(te->name, "Max OID") == 0) ) {
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res = REQ_DATA;
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}
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/* Mask it if we only want schema */
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/* Mask it if we only want schema */
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if (ropt->schemaOnly)
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if (ropt->schemaOnly)
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res = res & REQ_SCHEMA;
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res = res & REQ_SCHEMA;
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@ -5,7 +5,7 @@
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* Implements the basic DB functions used by the archiver.
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* Implements the basic DB functions used by the archiver.
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*
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*
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* IDENTIFICATION
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.29 2001/10/25 05:49:52 momjian Exp $
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_db.c,v 1.30 2002/01/18 17:13:51 tgl Exp $
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*
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*
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* NOTES
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* NOTES
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*
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*
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@ -17,6 +17,14 @@
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*
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*
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* - Avoid forcing table name to lower case in FixupBlobXrefs!
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* - Avoid forcing table name to lower case in FixupBlobXrefs!
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*
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*
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*
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* Modifications - 18-Jan-2002 - pjw@rhyme.com.au
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*
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* - Split ExecuteSqlCommandBuf into 3 routines for (slightly) improved
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* clarity. Modify loop to cater for COPY commands buried in the SQL
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* command buffer (prev version assumed COPY command was executed
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* in prior call). This was to fix the buf in the 'set max oid' code.
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*
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*-------------------------------------------------------------------------
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*-------------------------------------------------------------------------
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*/
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*/
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@ -43,6 +51,8 @@ static void _check_database_version(ArchiveHandle *AH, bool ignoreVersion);
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static PGconn *_connectDB(ArchiveHandle *AH, const char *newdbname, const char *newUser);
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static PGconn *_connectDB(ArchiveHandle *AH, const char *newdbname, const char *newUser);
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static int _executeSqlCommand(ArchiveHandle *AH, PGconn *conn, PQExpBuffer qry, char *desc);
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static int _executeSqlCommand(ArchiveHandle *AH, PGconn *conn, PQExpBuffer qry, char *desc);
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static void notice_processor(void *arg, const char *message);
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static void notice_processor(void *arg, const char *message);
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static char* _sendSQLLine( ArchiveHandle *AH, char *qry, char *eos);
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static char* _sendCopyLine( ArchiveHandle *AH, char *qry, char *eos);
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/*
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/*
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@ -534,15 +544,214 @@ _executeSqlCommand(ArchiveHandle *AH, PGconn *conn, PQExpBuffer qry, char *desc)
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return strlen(qry->data);
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return strlen(qry->data);
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}
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}
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/*
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* Used by ExecuteSqlCommandBuf to send one buffered line when running a COPY command.
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*/
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static char*
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_sendCopyLine( ArchiveHandle *AH, char *qry, char *eos)
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{
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int loc; /* Location of next newline */
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int pos = 0; /* Current position */
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int sPos = 0; /* Last pos of a slash char */
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int isEnd = 0;
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/* loop to find unquoted newline ending the line of COPY data */
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for (;;) {
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loc = strcspn(&qry[pos], "\n") + pos;
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/* If no match, then wait */
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if (loc >= (eos - qry)) /* None found */
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{
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appendBinaryPQExpBuffer(AH->pgCopyBuf, qry, (eos - qry));
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return eos;
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}
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/*
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* fprintf(stderr, "Found cr at %d, prev char was %c, next was
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* %c\n", loc, qry[loc-1], qry[loc+1]);
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*/
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/* Count the number of preceding slashes */
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sPos = loc;
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while (sPos > 0 && qry[sPos - 1] == '\\')
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sPos--;
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sPos = loc - sPos;
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/*
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* If an odd number of preceding slashes, then \n was escaped
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* so set the next search pos, and loop (if any left).
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*/
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if ((sPos & 1) == 1)
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{
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/* fprintf(stderr, "cr was escaped\n"); */
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pos = loc + 1;
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if (pos >= (eos - qry))
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{
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appendBinaryPQExpBuffer(AH->pgCopyBuf, qry, (eos - qry));
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return eos;
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}
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} else {
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break;
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}
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}
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/* We found an unquoted newline */
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qry[loc] = '\0';
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appendPQExpBuffer(AH->pgCopyBuf, "%s\n", qry);
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isEnd = (strcmp(AH->pgCopyBuf->data, "\\.\n") == 0);
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/*---------
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* fprintf(stderr, "Sending '%s' via
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* COPY (at end = %d)\n\n", AH->pgCopyBuf->data, isEnd);
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*---------
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*/
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if (PQputline(AH->connection, AH->pgCopyBuf->data) != 0)
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die_horribly(AH, modulename, "error returned by PQputline\n");
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resetPQExpBuffer(AH->pgCopyBuf);
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/*
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* fprintf(stderr, "Buffer is '%s'\n",
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* AH->pgCopyBuf->data);
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*/
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if (isEnd)
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{
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if (PQendcopy(AH->connection) != 0)
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die_horribly(AH, modulename, "error returned by PQendcopy\n");
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AH->pgCopyIn = 0;
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}
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return qry + loc + 1;
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}
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/*
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* Used by ExecuteSqlCommandBuf to send one buffered line of SQL (not data for the copy command).
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*/
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static char*
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_sendSQLLine( ArchiveHandle *AH, char *qry, char *eos)
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{
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int pos = 0; /* Current position */
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/*
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* The following is a mini state machine to assess the end of an
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* SQL statement. It really only needs to parse good SQL, or at
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* least that's the theory... End-of-statement is assumed to be an
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* unquoted, un commented semi-colon.
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*/
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/*
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* fprintf(stderr, "Buffer at start is: '%s'\n\n",
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* AH->sqlBuf->data);
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*/
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for (pos = 0; pos < (eos - qry); pos++)
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{
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appendPQExpBufferChar(AH->sqlBuf, qry[pos]);
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/* fprintf(stderr, " %c",qry[pos]); */
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switch (AH->sqlparse.state)
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{
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case SQL_SCAN: /* Default state == 0, set in _allocAH */
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if (qry[pos] == ';' && AH->sqlparse.braceDepth == 0)
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{
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/* Send It & reset the buffer */
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/*
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* fprintf(stderr, " sending: '%s'\n\n",
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* AH->sqlBuf->data);
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*/
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ExecuteSqlCommand(AH, AH->sqlBuf, "could not execute query", false);
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resetPQExpBuffer(AH->sqlBuf);
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AH->sqlparse.lastChar = '\0';
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/* Remove any following newlines - so that embedded COPY commands don't get a
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* starting newline.
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*/
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pos++;
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for ( ; pos < (eos - qry) && qry[pos] == '\n' ; pos++ ) ;
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/* We've got our line, so exit */
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return qry + pos;
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}
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else
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{
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if (qry[pos] == '"' || qry[pos] == '\'')
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{
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/* fprintf(stderr,"[startquote]\n"); */
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AH->sqlparse.state = SQL_IN_QUOTE;
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AH->sqlparse.quoteChar = qry[pos];
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AH->sqlparse.backSlash = 0;
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}
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else if (qry[pos] == '-' && AH->sqlparse.lastChar == '-')
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AH->sqlparse.state = SQL_IN_SQL_COMMENT;
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else if (qry[pos] == '*' && AH->sqlparse.lastChar == '/')
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AH->sqlparse.state = SQL_IN_EXT_COMMENT;
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else if (qry[pos] == '(')
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AH->sqlparse.braceDepth++;
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else if (qry[pos] == ')')
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AH->sqlparse.braceDepth--;
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AH->sqlparse.lastChar = qry[pos];
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}
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break;
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case SQL_IN_SQL_COMMENT:
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if (qry[pos] == '\n')
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AH->sqlparse.state = SQL_SCAN;
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break;
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case SQL_IN_EXT_COMMENT:
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if (AH->sqlparse.lastChar == '*' && qry[pos] == '/')
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AH->sqlparse.state = SQL_SCAN;
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break;
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case SQL_IN_QUOTE:
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if (!AH->sqlparse.backSlash && AH->sqlparse.quoteChar == qry[pos])
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{
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/* fprintf(stderr,"[endquote]\n"); */
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AH->sqlparse.state = SQL_SCAN;
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}
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else
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{
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if (qry[pos] == '\\')
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{
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if (AH->sqlparse.lastChar == '\\')
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AH->sqlparse.backSlash = !AH->sqlparse.backSlash;
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else
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AH->sqlparse.backSlash = 1;
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}
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else
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AH->sqlparse.backSlash = 0;
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}
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break;
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}
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AH->sqlparse.lastChar = qry[pos];
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/* fprintf(stderr, "\n"); */
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}
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/* If we get here, we've processed entire string with no complete SQL stmt */
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return eos;
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}
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/* Convenience function to send one or more queries. Monitors result to handle COPY statements */
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/* Convenience function to send one or more queries. Monitors result to handle COPY statements */
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int
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int
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ExecuteSqlCommandBuf(ArchiveHandle *AH, void *qryv, int bufLen)
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ExecuteSqlCommandBuf(ArchiveHandle *AH, void *qryv, int bufLen)
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{
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{
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int loc;
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int pos = 0;
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int sPos = 0;
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char *qry = (char *) qryv;
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char *qry = (char *) qryv;
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int isEnd = 0;
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char *eos = qry + bufLen;
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char *eos = qry + bufLen;
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/*
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/*
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@ -550,192 +759,16 @@ ExecuteSqlCommandBuf(ArchiveHandle *AH, void *qryv, int bufLen)
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* Buffer:\n\n%s\n*******************\n\n", qry);
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* Buffer:\n\n%s\n*******************\n\n", qry);
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*/
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*/
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/* If we're in COPY IN mode, then just break it into lines and send... */
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/* Could switch between command and COPY IN mode at each line */
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if (AH->pgCopyIn)
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while (qry < eos)
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{
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{
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for (;;)
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if (AH->pgCopyIn) {
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{
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qry = _sendCopyLine(AH, qry, eos);
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} else {
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/* Find a lf */
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qry = _sendSQLLine(AH, qry, eos);
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loc = strcspn(&qry[pos], "\n") + pos;
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pos = 0;
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/* If no match, then wait */
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if (loc >= (eos - qry)) /* None found */
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{
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appendBinaryPQExpBuffer(AH->pgCopyBuf, qry, (eos - qry));
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break;
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};
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/*
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* fprintf(stderr, "Found cr at %d, prev char was %c, next was
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* %c\n", loc, qry[loc-1], qry[loc+1]);
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*/
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/* Count the number of preceding slashes */
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sPos = loc;
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while (sPos > 0 && qry[sPos - 1] == '\\')
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sPos--;
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sPos = loc - sPos;
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/*
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* If an odd number of preceding slashes, then \n was escaped
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* so set the next search pos, and restart (if any left).
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*/
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if ((sPos & 1) == 1)
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{
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/* fprintf(stderr, "cr was escaped\n"); */
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pos = loc + 1;
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if (pos >= (eos - qry))
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{
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appendBinaryPQExpBuffer(AH->pgCopyBuf, qry, (eos - qry));
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break;
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}
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}
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else
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{
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/* We got a good cr */
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qry[loc] = '\0';
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appendPQExpBuffer(AH->pgCopyBuf, "%s\n", qry);
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qry += loc + 1;
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isEnd = (strcmp(AH->pgCopyBuf->data, "\\.\n") == 0);
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/*---------
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* fprintf(stderr, "Sending '%s' via
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* COPY (at end = %d)\n\n", AH->pgCopyBuf->data, isEnd);
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*---------
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*/
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if (PQputline(AH->connection, AH->pgCopyBuf->data) != 0)
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die_horribly(AH, modulename, "error returned by PQputline\n");
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resetPQExpBuffer(AH->pgCopyBuf);
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/*
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* fprintf(stderr, "Buffer is '%s'\n",
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* AH->pgCopyBuf->data);
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*/
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if (isEnd)
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{
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if (PQendcopy(AH->connection) != 0)
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die_horribly(AH, modulename, "error returned by PQendcopy\n");
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AH->pgCopyIn = 0;
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break;
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}
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}
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/* Make sure we're not past the original buffer end */
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|
||||||
if (qry >= eos)
|
|
||||||
break;
|
|
||||||
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* We may have finished Copy In, and have a non-empty buffer */
|
|
||||||
if (!AH->pgCopyIn)
|
|
||||||
{
|
|
||||||
/*
|
|
||||||
* The following is a mini state machine to assess then of of an
|
|
||||||
* SQL statement. It really only needs to parse good SQL, or at
|
|
||||||
* least that's the theory... End-of-statement is assumed to be an
|
|
||||||
* unquoted, un commented semi-colon.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* fprintf(stderr, "Buffer at start is: '%s'\n\n",
|
|
||||||
* AH->sqlBuf->data);
|
|
||||||
*/
|
|
||||||
|
|
||||||
for (pos = 0; pos < (eos - qry); pos++)
|
|
||||||
{
|
|
||||||
appendPQExpBufferChar(AH->sqlBuf, qry[pos]);
|
|
||||||
/* fprintf(stderr, " %c",qry[pos]); */
|
|
||||||
|
|
||||||
switch (AH->sqlparse.state)
|
|
||||||
{
|
|
||||||
|
|
||||||
case SQL_SCAN: /* Default state == 0, set in _allocAH */
|
|
||||||
|
|
||||||
if (qry[pos] == ';' && AH->sqlparse.braceDepth == 0)
|
|
||||||
{
|
|
||||||
/* Send It & reset the buffer */
|
|
||||||
|
|
||||||
/*
|
|
||||||
* fprintf(stderr, " sending: '%s'\n\n",
|
|
||||||
* AH->sqlBuf->data);
|
|
||||||
*/
|
|
||||||
ExecuteSqlCommand(AH, AH->sqlBuf, "could not execute query", false);
|
|
||||||
resetPQExpBuffer(AH->sqlBuf);
|
|
||||||
AH->sqlparse.lastChar = '\0';
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
if (qry[pos] == '"' || qry[pos] == '\'')
|
|
||||||
{
|
|
||||||
/* fprintf(stderr,"[startquote]\n"); */
|
|
||||||
AH->sqlparse.state = SQL_IN_QUOTE;
|
|
||||||
AH->sqlparse.quoteChar = qry[pos];
|
|
||||||
AH->sqlparse.backSlash = 0;
|
|
||||||
}
|
|
||||||
else if (qry[pos] == '-' && AH->sqlparse.lastChar == '-')
|
|
||||||
AH->sqlparse.state = SQL_IN_SQL_COMMENT;
|
|
||||||
else if (qry[pos] == '*' && AH->sqlparse.lastChar == '/')
|
|
||||||
AH->sqlparse.state = SQL_IN_EXT_COMMENT;
|
|
||||||
else if (qry[pos] == '(')
|
|
||||||
AH->sqlparse.braceDepth++;
|
|
||||||
else if (qry[pos] == ')')
|
|
||||||
AH->sqlparse.braceDepth--;
|
|
||||||
|
|
||||||
AH->sqlparse.lastChar = qry[pos];
|
|
||||||
}
|
|
||||||
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SQL_IN_SQL_COMMENT:
|
|
||||||
|
|
||||||
if (qry[pos] == '\n')
|
|
||||||
AH->sqlparse.state = SQL_SCAN;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SQL_IN_EXT_COMMENT:
|
|
||||||
|
|
||||||
if (AH->sqlparse.lastChar == '*' && qry[pos] == '/')
|
|
||||||
AH->sqlparse.state = SQL_SCAN;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case SQL_IN_QUOTE:
|
|
||||||
|
|
||||||
if (!AH->sqlparse.backSlash && AH->sqlparse.quoteChar == qry[pos])
|
|
||||||
{
|
|
||||||
/* fprintf(stderr,"[endquote]\n"); */
|
|
||||||
AH->sqlparse.state = SQL_SCAN;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
|
|
||||||
if (qry[pos] == '\\')
|
|
||||||
{
|
|
||||||
if (AH->sqlparse.lastChar == '\\')
|
|
||||||
AH->sqlparse.backSlash = !AH->sqlparse.backSlash;
|
|
||||||
else
|
|
||||||
AH->sqlparse.backSlash = 1;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
AH->sqlparse.backSlash = 0;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
}
|
|
||||||
AH->sqlparse.lastChar = qry[pos];
|
|
||||||
/* fprintf(stderr, "\n"); */
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user