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119 lines
4.7 KiB
119 lines
4.7 KiB
/*
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* $Id$
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*
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* PostgreSQL Database Driver for SER
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*
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* Portions Copyright (C) 2001-2003 FhG FOKUS
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* Copyright (C) 2003 August.Net Services, LLC
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* Portions Copyright (C) 2005-2008 iptelorg GmbH
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*
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* This file is part of SER, a free SIP server.
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*
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* SER is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version
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*
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* For a license to use the ser software under conditions other than those
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* described here, or to purchase support for this software, please contact
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* iptel.org by e-mail at the following addresses: info@iptel.org
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*
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* SER is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _PG_SQL_H
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#define _PG_SQL_H
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/** \addtogroup postgres
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* @{
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*/
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/** \file
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* Implementation of various functions that assemble SQL query strings for
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* PostgreSQL.
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*/
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#include "../../lib/srdb2/db_cmd.h"
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#include "../../str.h"
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/** Builds an UPDATE SQL statement.
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* This function creates an UPDATE SQL statement where column values are
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* replaced with special markers. The resulting SQL statement is suitable
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* for submitting as prepared statement. The result string is zero terminated.
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* @param sql_cmd Pointer to a str variable where the resulting SQL statement
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* will be stored. The buffer in sql_cmd->s is allocated using
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* pkg_malloc and the caller of the function is responsible for
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* freeing it.
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* @param cmd The command whose data will be used to generate the query.
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* @return 0 on success, negative number on error
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*/
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int build_update_sql(str* sql_cmd, db_cmd_t* cmd);
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/** Builds an INSERT SQL statement.
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* This function creates an INSERT SQL statement where column values are
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* replaced with special markers. The resulting SQL statement is suitable
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* for submitting as prepared statement. The result string is zero terminated.
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* @param sql_cmd Pointer to a str variable where the resulting SQL statement
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* will be stored. The buffer in sql_cmd->s is allocated using
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* pkg_malloc and the caller of the function is responsible for * freeing it.
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* @param cmd The command whose data will be used to generate the query.
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* @return 0 on success, negative number on error
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*/
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int build_insert_sql(str* sql_cmd, db_cmd_t* cmd);
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/** Builds a DELETE SQL statement.
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* This function creates a DELETE SQL statement where column values are
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* replaced with special markers. The resulting SQL statement is suitable
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* for submitting as prepared statement. The result string is zero terminated.
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* @param sql_cmd Pointer to a str variable where the resulting SQL statement
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* will be stored. The buffer in sql_cmd->s is allocated using
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* pkg_malloc and the caller of the function is responsible for
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* freeing it.
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* @param cmd The command whose data will be used to generate the query.
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* @return 0 on success, negative number on error
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*/
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int build_delete_sql(str* sql_cmd, db_cmd_t* cmd);
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/** Builds a SELECT SQL statement.
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* This function creates a SELECT SQL statement where column values are
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* replaced with special markers. The resulting SQL statement is suitable
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* for submitting as prepared statement. The result string is zero terminated.
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* @param sql_cmd Pointer to a str variable where the resulting SQL statement
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* will be stored. The buffer in sql_cmd->s is allocated using
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* pkg_malloc and the caller of the function is responsible for
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* freeing it.
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* @param cmd The command whose data will be used to generate the query.
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* @return 0 on success, negative number on error
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*/
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int build_select_sql(str* sql_cmd, db_cmd_t* cmd);
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/* Builds SQL query used to obtain the list of supported field types.
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* This function builds a special SQL query that is used to obtain the list
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* of supported field type from the server's system catalogs.
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*/
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int build_select_oid_sql(str* sql_cmd);
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/** Builds the SQL query used to determine the format of timestamp fields.
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* This function builds a special SQL query that is sent to the server
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* immediately after establishing a connection to determine the format of
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* timestamp fields used on the server.
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*/
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int build_timestamp_format_sql(str* sql_cmd);
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/** @} */
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#endif /* _PG_SQL_H */
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