#include "pg_backup.h"

Include dependency graph for pg_backup_db.h:

This graph shows which files directly or indirectly include this file:

Functions
int	ExecuteSqlCommandBuf (Archive AHX, const char buf, size_t bufLen)

void	ExecuteSqlStatement (Archive AHX, const char query)

PGresult *	ExecuteSqlQuery (Archive AHX, const char query, ExecStatusType status)

PGresult *	ExecuteSqlQueryForSingleRow (Archive fout, const char query)

void	EndDBCopyMode (Archive AHX, const char tocEntryTag)

void	StartTransaction (Archive *AHX)

void	CommitTransaction (Archive *AHX)

Function Documentation

◆ CommitTransaction()

void CommitTransaction ( Archive * AHX )

Definition at line 476 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
 
    ExecuteSqlCommand(AH, "COMMIT", "could not commit database transaction");
}

References ExecuteSqlCommand().

Referenced by IssueCommandPerBlob().

◆ EndDBCopyMode()

void EndDBCopyMode	(	Archive *	AHX,
		const char *	tocEntryTag
	)

Definition at line 439 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
 
    if (AH->pgCopyIn)
    {
        PGresult   *res;
 
        if (PQputCopyEnd(AH->connection, NULL) <= 0)
            pg_fatal("error returned by PQputCopyEnd: %s",
                     PQerrorMessage(AH->connection));
 
        /* Check command status and return to normal libpq state */
        res = PQgetResult(AH->connection);
        if (PQresultStatus(res) != PGRES_COMMAND_OK)
            warn_or_exit_horribly(AH, "COPY failed for table \"%s\": %s",
                                  tocEntryTag, PQerrorMessage(AH->connection));
        PQclear(res);
 
        /* Do this to ensure we've pumped libpq back to idle state */
        if (PQgetResult(AH->connection) != NULL)
            pg_log_warning("unexpected extra results during COPY of table \"%s\"",
                           tocEntryTag);
 
        AH->pgCopyIn = false;
    }
}

References _archiveHandle::connection, pg_fatal, pg_log_warning, _archiveHandle::pgCopyIn, PGRES_COMMAND_OK, PQclear(), PQerrorMessage(), PQgetResult(), PQputCopyEnd(), PQresultStatus(), and warn_or_exit_horribly().

Referenced by restore_toc_entry().

◆ ExecuteSqlCommandBuf()

int ExecuteSqlCommandBuf	(	Archive *	AHX,
		const char *	buf,
		size_t	bufLen
	)

Definition at line 384 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
 
    if (AH->outputKind == OUTPUT_COPYDATA)
    {
        /*
         * COPY data.
         *
         * We drop the data on the floor if libpq has failed to enter COPY
         * mode; this allows us to behave reasonably when trying to continue
         * after an error in a COPY command.
         */
        if (AH->pgCopyIn &&
            PQputCopyData(AH->connection, buf, bufLen) <= 0)
            pg_fatal("error returned by PQputCopyData: %s",
                     PQerrorMessage(AH->connection));
    }
    else if (AH->outputKind == OUTPUT_OTHERDATA)
    {
        /*
         * Table data expressed as INSERT commands; or, in old dump files,
         * BLOB COMMENTS data (which is expressed as COMMENT ON commands).
         */
        ExecuteSimpleCommands(AH, buf, bufLen);
    }
    else
    {
        /*
         * General SQL commands; we assume that commands will not be split
         * across calls.
         *
         * In most cases the data passed to us will be a null-terminated
         * string, but if it's not, we have to add a trailing null.
         */
        if (buf[bufLen] == '\0')
            ExecuteSqlCommand(AH, buf, "could not execute query");
        else
        {
            char       *str = (char *) pg_malloc(bufLen + 1);
 
            memcpy(str, buf, bufLen);
            str[bufLen] = '\0';
            ExecuteSqlCommand(AH, str, "could not execute query");
            free(str);
        }
    }
 
    return bufLen;
}

References buf, _archiveHandle::connection, ExecuteSimpleCommands(), ExecuteSqlCommand(), free, OUTPUT_COPYDATA, OUTPUT_OTHERDATA, _archiveHandle::outputKind, pg_fatal, pg_malloc(), _archiveHandle::pgCopyIn, PQerrorMessage(), PQputCopyData(), and str.

Referenced by ahwrite().

◆ ExecuteSqlQuery()

PGresult * ExecuteSqlQuery	(	Archive *	AHX,
		const char *	query,
		ExecStatusType	status
	)

Definition at line 229 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
    PGresult   *res;
 
    res = PQexec(AH->connection, query);
    if (PQresultStatus(res) != status)
        die_on_query_failure(AH, query);
    return res;
}

References _archiveHandle::connection, die_on_query_failure(), PQexec(), and PQresultStatus().

Referenced by append_depends_on_extension(), buildMatViewRefreshDependencies(), collectBinaryUpgradeClassOids(), collectComments(), collectRoleNames(), collectSecLabels(), collectSequences(), createViewAsClause(), dumpCompositeType(), dumpDatabase(), dumpDatabaseConfig(), dumpEnumType(), dumpOpclass(), dumpOpfamily(), dumpRule(), dumpSequence(), dumpSequenceData(), dumpTable(), dumpTableData_copy(), dumpTableData_insert(), dumpTSConfig(), dumpUserMappings(), ExecuteSqlQueryForSingleRow(), expand_extension_name_patterns(), expand_foreign_server_name_patterns(), expand_schema_name_patterns(), expand_table_name_patterns(), fetchAttributeStats(), getAccessMethods(), getAdditionalACLs(), getAggregates(), getCasts(), getCollations(), getConstraints(), getConversions(), getDefaultACLs(), getDependencies(), getDomainConstraints(), getEventTriggers(), getExtendedStatistics(), getExtensionMembership(), getExtensions(), getForeignDataWrappers(), getForeignServers(), getFuncs(), getIndexes(), getInherits(), getLOs(), getNamespaces(), getOpclasses(), getOperators(), getOpfamilies(), getPartitioningInfo(), getPolicies(), getProcLangs(), getPublicationNamespaces(), getPublications(), getPublicationTables(), getRules(), getSubscriptions(), getSubscriptionTables(), getTableAttrs(), getTables(), getTransforms(), getTriggers(), getTSConfigurations(), getTSDictionaries(), getTSParsers(), getTSTemplates(), getTypes(), processExtensionTables(), and set_restrict_relation_kind().

◆ ExecuteSqlQueryForSingleRow()

PGresult * ExecuteSqlQueryForSingleRow	(	Archive *	fout,
		const char *	query
	)

Definition at line 244 of file pg_backup_db.c.

{
    PGresult   *res;
    int         ntups;
 
    res = ExecuteSqlQuery(fout, query, PGRES_TUPLES_OK);
 
    /* Expecting a single result only */
    ntups = PQntuples(res);
    if (ntups != 1)
        pg_fatal(ngettext("query returned %d row instead of one: %s",
                          "query returned %d rows instead of one: %s",
                          ntups),
                 ntups, query);
 
    return res;
}

References ExecuteSqlQuery(), ngettext, pg_fatal, PGRES_TUPLES_OK, and PQntuples().

Referenced by _check_database_version(), binary_upgrade_set_type_oids_by_type_oid(), ConnectDatabaseAhx(), convertTSFunction(), dumpAgg(), dumpBaseType(), dumpCollation(), dumpConversion(), dumpDatabase(), dumpDomain(), dumpForeignServer(), dumpFunc(), dumpOpclass(), dumpOpfamily(), dumpOpr(), dumpRangeType(), dumpSearchPath(), dumpStatisticsExt(), dumpTableAttach(), dumpTableSchema(), dumpTSConfig(), dumpTSDictionary(), expand_table_name_patterns(), get_language_name(), get_next_possible_free_pg_type_oid(), get_synchronized_snapshot(), getFormattedTypeName(), and setup_connection().

◆ ExecuteSqlStatement()

void ExecuteSqlStatement	(	Archive *	AHX,
		const char *	query
	)

Definition at line 217 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
    PGresult   *res;
 
    res = PQexec(AH->connection, query);
    if (PQresultStatus(res) != PGRES_COMMAND_OK)
        die_on_query_failure(AH, query);
    PQclear(res);
}

References _archiveHandle::connection, die_on_query_failure(), PGRES_COMMAND_OK, PQclear(), PQexec(), and PQresultStatus().

Referenced by dumpAgg(), dumpBaseType(), dumpCompositeType(), dumpDomain(), dumpEnumType(), dumpFunc(), dumpOpr(), dumpRangeType(), dumpRelationStats_dumper(), dumpTable(), dumpTableAttach(), dumpTableData_insert(), expand_table_name_patterns(), getDomainConstraints(), getTables(), and setup_connection().

◆ StartTransaction()

void StartTransaction ( Archive * AHX )

Definition at line 468 of file pg_backup_db.c.

{
    ArchiveHandle *AH = (ArchiveHandle *) AHX;
 
    ExecuteSqlCommand(AH, "BEGIN", "could not start database transaction");
}