2012-04-10 14:06:34 -04:00
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<?php
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/**
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* Query
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*
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* Free Query Builder / Database Abstraction Layer
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*
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012
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* @link https://github.com/aviat4ion/Query
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2012-04-12 15:24:47 -04:00
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* @license http://philsturgeon.co.uk/code/dbad-license
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2012-04-10 14:06:34 -04:00
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*/
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// --------------------------------------------------------------------------
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/**
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* PostgreSQL specifc SQL
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2012-04-20 13:17:39 -04:00
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*
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* @package Query
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* @subpackage Drivers
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2012-04-10 14:06:34 -04:00
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*/
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2012-04-20 13:17:39 -04:00
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class PgSQL_SQL extends DB_SQL {
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2012-04-10 14:06:34 -04:00
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/**
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* Limit clause
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*
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* @param string $sql
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* @param int $limit
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* @param int $offset
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* @return string
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*/
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public function limit($sql, $limit, $offset=FALSE)
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{
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$sql .= " LIMIT {$limit}";
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if(is_numeric($offset))
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{
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$sql .= " OFFSET {$offset}";
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}
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return $sql;
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}
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// --------------------------------------------------------------------------
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/**
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* Random ordering keyword
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*
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* @return string
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*/
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public function random()
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{
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return ' RANDOM()';
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list other databases
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*
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* @return string
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*/
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public function db_list()
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{
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return <<<SQL
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SELECT "datname" FROM "pg_database"
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WHERE "datname" NOT IN ('template0','template1')
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ORDER BY "datname" ASC
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list tables
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*
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* @return string
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*/
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public function table_list()
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{
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return <<<SQL
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2012-04-17 10:49:38 -04:00
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SELECT "table_name"
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2012-04-17 10:56:08 -04:00
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FROM "information_schema"."tables"
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WHERE "table_type" = 'BASE TABLE'
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AND "table_schema" NOT IN
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('pg_catalog', 'information_schema');
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2012-04-10 14:06:34 -04:00
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list system tables
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*
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* @return string
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*/
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public function system_table_list()
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{
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return <<<SQL
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2012-04-17 10:56:08 -04:00
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SELECT "table_name"
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FROM "information_schema"."tables"
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WHERE "table_type" = 'BASE TABLE'
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AND "table_schema" IN
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('pg_catalog', 'information_schema');
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2012-04-10 14:06:34 -04:00
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list views
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*
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* @return string
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*/
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public function view_list()
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{
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return <<<SQL
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SELECT "viewname" FROM "pg_views"
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WHERE "schemaname" NOT IN
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('pg_catalog', 'information_schema')
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AND "viewname" !~ '^pg_'
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ORDER BY "viewname" ASC
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list triggers
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*
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* @return string
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*/
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public function trigger_list()
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{
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return <<<SQL
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2012-04-12 15:24:47 -04:00
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SELECT *
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2012-04-10 14:06:34 -04:00
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FROM "information_schema"."triggers"
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WHERE "trigger_schema" NOT IN
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('pg_catalog', 'information_schema')
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list functions
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*
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* @return FALSE
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*/
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public function function_list()
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{
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return FALSE;
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list stored procedures
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*
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* @return string
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*/
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public function procedure_list()
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{
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return <<<SQL
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SELECT "routine_name"
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FROM "information_schema"."routines"
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WHERE "specific_schema" NOT IN
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('pg_catalog', 'information_schema')
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AND "type_udt_name" != 'trigger';
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list sequences
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*
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* @return string
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*/
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public function sequence_list()
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{
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return <<<SQL
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SELECT "c"."relname"
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FROM "pg_class" "c"
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WHERE "c"."relkind" = 'S'
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ORDER BY "relname" ASC
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SQL;
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}
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2012-04-12 15:24:47 -04:00
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2012-04-12 13:44:31 -04:00
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// --------------------------------------------------------------------------
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2012-04-12 15:24:47 -04:00
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2012-04-12 13:44:31 -04:00
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/**
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* Return sql to list columns of the specified table
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2012-04-12 15:24:47 -04:00
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*
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2012-04-12 13:44:31 -04:00
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* @param string $table
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2012-04-12 15:24:47 -04:00
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* @return string
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2012-04-12 13:44:31 -04:00
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*/
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public function column_list($table)
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{
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return <<<SQL
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SELECT ordinal_position,
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column_name,
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data_type,
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column_default,
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is_nullable,
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character_maximum_length,
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numeric_precision
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FROM information_schema.columns
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WHERE table_name = '{$table}'
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ORDER BY ordinal_position;
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SQL;
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}
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2012-05-07 16:05:51 -04:00
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// --------------------------------------------------------------------------
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/**
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* SQL to show list of field types
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*
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* @return string
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*/
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public function type_list()
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{
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// TODO implement type_list method
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}
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2012-04-10 14:06:34 -04:00
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}
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//End of pgsql_manip.php
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