585 lines
18 KiB
PHP
585 lines
18 KiB
PHP
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<?php
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/**
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* Data Dictionary for PostgreSQL.
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*
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* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
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*
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* @package ADOdb
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* @link https://adodb.org Project's web site and documentation
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* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
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*
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* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
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* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
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* any later version. This means you can use it in proprietary products.
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* See the LICENSE.md file distributed with this source code for details.
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* @license BSD-3-Clause
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* @license LGPL-2.1-or-later
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*
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* @copyright 2000-2013 John Lim
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* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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class ADODB2_postgres extends ADODB_DataDict
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{
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var $databaseType = 'postgres';
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var $seqField = false;
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var $seqPrefix = 'SEQ_';
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var $addCol = ' ADD COLUMN';
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var $quote = '"';
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var $renameTable = 'ALTER TABLE %s RENAME TO %s'; // at least since 7.1
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var $dropTable = 'DROP TABLE %s CASCADE';
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public $blobAllowsDefaultValue = true;
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public $blobAllowsNotNull = true;
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function metaType($t, $len=-1, $fieldobj=false)
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{
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if (is_object($t)) {
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$fieldobj = $t;
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$t = $fieldobj->type;
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$len = $fieldobj->max_length;
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}
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$t = strtoupper($t);
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if (array_key_exists($t,$this->connection->customActualTypes))
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return $this->connection->customActualTypes[$t];
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$is_serial = is_object($fieldobj) && !empty($fieldobj->primary_key) && !empty($fieldobj->unique) &&
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!empty($fieldobj->has_default) && substr($fieldobj->default_value,0,8) == 'nextval(';
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switch ($t) {
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case 'INTERVAL':
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case 'CHAR':
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case 'CHARACTER':
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case 'VARCHAR':
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case 'NAME':
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case 'BPCHAR':
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if ($len <= $this->blobSize) return 'C';
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case 'TEXT':
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return 'X';
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case 'IMAGE': // user defined type
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case 'BLOB': // user defined type
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case 'BIT': // This is a bit string, not a single bit, so don't return 'L'
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case 'VARBIT':
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case 'BYTEA':
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return 'B';
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case 'BOOL':
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case 'BOOLEAN':
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return 'L';
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case 'DATE':
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return 'D';
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case 'TIME':
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case 'DATETIME':
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case 'TIMESTAMP':
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case 'TIMESTAMPTZ':
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return 'T';
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case 'INTEGER': return !$is_serial ? 'I' : 'R';
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case 'SMALLINT':
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case 'INT2': return !$is_serial ? 'I2' : 'R';
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case 'INT4': return !$is_serial ? 'I4' : 'R';
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case 'BIGINT':
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case 'INT8': return !$is_serial ? 'I8' : 'R';
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case 'OID':
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case 'SERIAL':
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return 'R';
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case 'FLOAT4':
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case 'FLOAT8':
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case 'DOUBLE PRECISION':
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case 'REAL':
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return 'F';
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default:
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return ADODB_DEFAULT_METATYPE;
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}
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}
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function actualType($meta)
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{
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$meta = strtoupper($meta);
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/*
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* Add support for custom meta types. We do this
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* first, that allows us to override existing types
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*/
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if (isset($this->connection->customMetaTypes[$meta]))
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return $this->connection->customMetaTypes[$meta]['actual'];
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switch ($meta) {
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case 'C': return 'VARCHAR';
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case 'XL':
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case 'X': return 'TEXT';
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case 'C2': return 'VARCHAR';
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case 'X2': return 'TEXT';
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case 'B': return 'BYTEA';
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case 'D': return 'DATE';
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case 'TS':
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case 'T': return 'TIMESTAMP';
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case 'L': return 'BOOLEAN';
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case 'I': return 'INTEGER';
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case 'I1': return 'SMALLINT';
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case 'I2': return 'INT2';
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case 'I4': return 'INT4';
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case 'I8': return 'INT8';
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case 'F': return 'FLOAT8';
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case 'N': return 'NUMERIC';
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default:
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return $meta;
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}
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}
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/**
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* Adding a new Column
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*
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* reimplementation of the default function as postgres does NOT allow to set the default in the same statement
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*
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* @param string $tabname table-name
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* @param string $flds column-names and types for the changed columns
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* @return array with SQL strings
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*/
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function addColumnSQL($tabname, $flds)
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{
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$tabname = $this->tableName($tabname);
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$sql = array();
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$not_null = false;
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list($lines,$pkey) = $this->_genFields($flds);
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$alter = 'ALTER TABLE ' . $tabname . $this->addCol . ' ';
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foreach($lines as $v) {
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if (($not_null = preg_match('/NOT NULL/i',$v))) {
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$v = preg_replace('/NOT NULL/i','',$v);
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}
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if (preg_match('/^([^ ]+) .*DEFAULT (\'[^\']+\'|\"[^\"]+\"|[^ ]+)/',$v,$matches)) {
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list(,$colname,$default) = $matches;
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$sql[] = $alter . str_replace('DEFAULT '.$default,'',$v);
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$sql[] = 'UPDATE '.$tabname.' SET '.$colname.'='.$default.' WHERE '.$colname.' IS NULL ';
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$sql[] = 'ALTER TABLE '.$tabname.' ALTER COLUMN '.$colname.' SET DEFAULT ' . $default;
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} else {
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$sql[] = $alter . $v;
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}
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if ($not_null) {
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list($colname) = explode(' ',$v);
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$sql[] = 'ALTER TABLE '.$tabname.' ALTER COLUMN '.$colname.' SET NOT NULL';
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}
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}
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return $sql;
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}
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function dropIndexSQL($idxname, $tabname = NULL)
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{
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return array(sprintf($this->dropIndex, $this->tableName($idxname), $this->tableName($tabname)));
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}
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/**
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* Change the definition of one column
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*
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* Postgres can't do that on its own, you need to supply the complete
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* definition of the new table, to allow recreating the table and copying
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* the content over to the new table.
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*
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* @param string $tabname table-name
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* @param string $flds column-name and type for the changed column
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* @param string $tableflds complete definition of the new table, e.g. for postgres, default ''
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* @param array $tableoptions options for the new table {@see CreateTableSQL()}, default ''
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*
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* @return array with SQL strings
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*/
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function alterColumnSQL($tabname, $flds, $tableflds='', $tableoptions='')
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{
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// Check if alter single column datatype available - works with 8.0+
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$has_alter_column = 8.0 <= (float) @$this->serverInfo['version'];
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if ($has_alter_column) {
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$tabname = $this->tableName($tabname);
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$sql = array();
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list($lines,$pkey) = $this->_genFields($flds);
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$set_null = false;
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foreach($lines as $v) {
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$alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' ';
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if ($not_null = preg_match('/NOT NULL/i',$v)) {
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$v = preg_replace('/NOT NULL/i','',$v);
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}
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// this next block doesn't work - there is no way that I can see to
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// explicitly ask a column to be null using $flds
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elseif ($set_null = preg_match('/NULL/i',$v)) {
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// if they didn't specify not null, see if they explicitly asked for null
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// Lookbehind pattern covers the case 'fieldname NULL datatype DEFAULT NULL'
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// only the first NULL should be removed, not the one specifying
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// the default value
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$v = preg_replace('/(?<!DEFAULT)\sNULL/i','',$v);
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}
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if (preg_match('/^([^ ]+) .*DEFAULT (\'[^\']+\'|\"[^\"]+\"|[^ ]+)/',$v,$matches)) {
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$existing = $this->metaColumns($tabname);
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list(,$colname,$default) = $matches;
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$alter .= $colname;
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if ($this->connection) {
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$old_coltype = $this->connection->metaType($existing[strtoupper($colname)]);
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} else {
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$old_coltype = $t;
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}
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$v = preg_replace('/^' . preg_quote($colname) . '\s/', '', $v);
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$t = trim(str_replace('DEFAULT '.$default,'',$v));
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// Type change from bool to int
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if ( $old_coltype == 'L' && $t == 'INTEGER' ) {
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$sql[] = $alter . ' DROP DEFAULT';
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$sql[] = $alter . " TYPE $t USING ($colname::BOOL)::INT";
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$sql[] = $alter . " SET DEFAULT $default";
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}
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// Type change from int to bool
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else if ( $old_coltype == 'I' && $t == 'BOOLEAN' ) {
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if( strcasecmp('NULL', trim($default)) != 0 ) {
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$default = $this->connection->qstr($default);
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}
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$sql[] = $alter . ' DROP DEFAULT';
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$sql[] = $alter . " TYPE $t USING CASE WHEN $colname = 0 THEN false ELSE true END";
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$sql[] = $alter . " SET DEFAULT $default";
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}
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// Any other column types conversion
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else {
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$sql[] = $alter . " TYPE $t";
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$sql[] = $alter . " SET DEFAULT $default";
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}
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}
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else {
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// drop default?
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preg_match ('/^\s*(\S+)\s+(.*)$/',$v,$matches);
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list (,$colname,$rest) = $matches;
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$alter .= $colname;
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$sql[] = $alter . ' TYPE ' . $rest;
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}
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#list($colname) = explode(' ',$v);
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if ($not_null) {
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// this does not error out if the column is already not null
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$sql[] = $alter . ' SET NOT NULL';
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}
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if ($set_null) {
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// this does not error out if the column is already null
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$sql[] = $alter . ' DROP NOT NULL';
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}
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}
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return $sql;
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}
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// does not have alter column
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if (!$tableflds) {
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if ($this->debug) ADOConnection::outp("AlterColumnSQL needs a complete table-definiton for PostgreSQL");
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return array();
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}
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return $this->_recreate_copy_table($tabname, false, $tableflds,$tableoptions);
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}
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/**
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* Drop one column
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*
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* Postgres < 7.3 can't do that on it's own, you need to supply the complete definition of the new table,
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* to allow, recreating the table and copying the content over to the new table
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* @param string $tabname table-name
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* @param string $flds column-name and type for the changed column
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* @param string $tableflds complete definition of the new table, eg. for postgres, default ''
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* @param array $tableoptions options for the new table {@see CreateTableSQL}, default []
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* @return array with SQL strings
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*/
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function dropColumnSQL($tabname, $flds, $tableflds='', $tableoptions='')
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{
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$has_drop_column = 7.3 <= (float) @$this->serverInfo['version'];
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if (!$has_drop_column && !$tableflds) {
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if ($this->debug) {
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ADOConnection::outp("dropColumnSQL needs complete table-definiton for PostgreSQL < 7.3");
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}
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return array();
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}
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if ($has_drop_column) {
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return ADODB_DataDict::dropColumnSQL($tabname, $flds);
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}
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return $this->_recreate_copy_table($tabname, $flds, $tableflds, $tableoptions);
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}
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/**
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* Save the content into a temp. table, drop and recreate the original table and copy the content back in
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*
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* We also take care to set the values of the sequenz and recreate the indexes.
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* All this is done in a transaction, to not loose the content of the table, if something went wrong!
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* @internal
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* @param string $tabname table-name
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* @param string $dropflds column-names to drop
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* @param string $tableflds complete definition of the new table, eg. for postgres
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* @param array|string $tableoptions options for the new table see CreateTableSQL, default ''
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* @return array with SQL strings
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*/
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function _recreate_copy_table($tabname, $dropflds, $tableflds, $tableoptions='')
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{
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if ($dropflds && !is_array($dropflds)) $dropflds = explode(',',$dropflds);
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$copyflds = array();
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foreach($this->metaColumns($tabname) as $fld) {
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if (preg_match('/'.$fld->name.' (\w+)/i', $tableflds, $matches)) {
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$new_type = strtoupper($matches[1]);
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// AlterColumn of a char column to a nummeric one needs an explicit conversation
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if (in_array($new_type, array('I', 'I2', 'I4', 'I8', 'N', 'F')) &&
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in_array($fld->type, array('varchar','char','text','bytea'))
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) {
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$copyflds[] = "to_number($fld->name,'S9999999999999D99')";
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} else {
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// other column-type changes needs explicit decode, encode for bytea or cast otherwise
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$new_actual_type = $this->actualType($new_type);
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if (strtoupper($fld->type) != $new_actual_type) {
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if ($new_actual_type == 'BYTEA' && $fld->type == 'text') {
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$copyflds[] = "DECODE($fld->name, 'escape')";
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} elseif ($fld->type == 'bytea' && $new_actual_type == 'TEXT') {
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$copyflds[] = "ENCODE($fld->name, 'escape')";
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} else {
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|
|
$copyflds[] = "CAST($fld->name AS $new_actual_type)";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$copyflds[] = $fld->name;
|
||
|
|
}
|
||
|
|
// identify the sequence name and the fld its on
|
||
|
|
if ($fld->primary_key && $fld->has_default &&
|
||
|
|
preg_match("/nextval\('([^']+)'::(text|regclass)\)/", $fld->default_value, $matches)) {
|
||
|
|
$seq_name = $matches[1];
|
||
|
|
$seq_fld = $fld->name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$copyflds = implode(', ', $copyflds);
|
||
|
|
|
||
|
|
$tempname = $tabname.'_tmp';
|
||
|
|
$aSql[] = 'BEGIN'; // we use a transaction, to make sure not to loose the content of the table
|
||
|
|
$aSql[] = "SELECT * INTO TEMPORARY TABLE $tempname FROM $tabname";
|
||
|
|
$aSql = array_merge($aSql,$this->dropTableSQL($tabname));
|
||
|
|
$aSql = array_merge($aSql,$this->createTableSQL($tabname, $tableflds, $tableoptions));
|
||
|
|
$aSql[] = "INSERT INTO $tabname SELECT $copyflds FROM $tempname";
|
||
|
|
if ($seq_name && $seq_fld) { // if we have a sequence we need to set it again
|
||
|
|
$seq_name = $tabname.'_'.$seq_fld.'_seq'; // has to be the name of the new implicit sequence
|
||
|
|
$aSql[] = "SELECT setval('$seq_name', MAX($seq_fld)) FROM $tabname";
|
||
|
|
}
|
||
|
|
$aSql[] = "DROP TABLE $tempname";
|
||
|
|
// recreate the indexes, if they not contain one of the dropped columns
|
||
|
|
foreach($this->metaIndexes($tabname) as $idx_name => $idx_data) {
|
||
|
|
if (substr($idx_name,-5) != '_pkey' && (!$dropflds || !count(array_intersect($dropflds,$idx_data['columns'])))) {
|
||
|
|
$aSql = array_merge($aSql,$this->createIndexSQL($idx_name, $tabname, $idx_data['columns'],
|
||
|
|
$idx_data['unique'] ? array('UNIQUE') : false));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$aSql[] = 'COMMIT';
|
||
|
|
return $aSql;
|
||
|
|
}
|
||
|
|
|
||
|
|
function dropTableSQL($tabname)
|
||
|
|
{
|
||
|
|
$sql = ADODB_DataDict::dropTableSQL($tabname);
|
||
|
|
|
||
|
|
$drop_seq = $this->_dropAutoIncrement($tabname);
|
||
|
|
if ($drop_seq) {
|
||
|
|
$sql[] = $drop_seq;
|
||
|
|
}
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
|
||
|
|
// return string must begin with space
|
||
|
|
function _createSuffix($fname, &$ftype, $fnotnull, $fdefault, $fautoinc, $fconstraint, $funsigned)
|
||
|
|
{
|
||
|
|
if ($fautoinc) {
|
||
|
|
$ftype = 'SERIAL';
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
$suffix = '';
|
||
|
|
if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
|
||
|
|
if ($fnotnull) $suffix .= ' NOT NULL';
|
||
|
|
if ($fconstraint) $suffix .= ' '.$fconstraint;
|
||
|
|
return $suffix;
|
||
|
|
}
|
||
|
|
|
||
|
|
// search for a sequence for the given table (asumes the seqence-name contains the table-name!)
|
||
|
|
// if yes return sql to drop it
|
||
|
|
// this is still necessary if postgres < 7.3 or the SERIAL was created on an earlier version!!!
|
||
|
|
function _dropAutoIncrement($tabname)
|
||
|
|
{
|
||
|
|
$tabname = $this->connection->quote('%'.$tabname.'%');
|
||
|
|
|
||
|
|
$seq = $this->connection->getOne("SELECT relname FROM pg_class WHERE NOT relname ~ 'pg_.*' AND relname LIKE $tabname AND relkind='S'");
|
||
|
|
|
||
|
|
// check if a tables depends on the sequence and it therefore can't and don't need to be dropped separately
|
||
|
|
if (!$seq || $this->connection->getOne("SELECT relname FROM pg_class JOIN pg_depend ON pg_class.relfilenode=pg_depend.objid WHERE relname='$seq' AND relkind='S' AND deptype='i'")) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return "DROP SEQUENCE ".$seq;
|
||
|
|
}
|
||
|
|
|
||
|
|
function renameTableSQL($tabname, $newname)
|
||
|
|
{
|
||
|
|
if (!empty($this->schema)) {
|
||
|
|
$rename_from = $this->tableName($tabname);
|
||
|
|
$schema_save = $this->schema;
|
||
|
|
$this->schema = false;
|
||
|
|
$rename_to = $this->tableName($newname);
|
||
|
|
$this->schema = $schema_save;
|
||
|
|
return array (sprintf($this->renameTable, $rename_from, $rename_to));
|
||
|
|
}
|
||
|
|
|
||
|
|
return array (sprintf($this->renameTable, $this->tableName($tabname), $this->tableName($newname)));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
|
||
|
|
{ column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ]
|
||
|
|
| table_constraint } [, ... ]
|
||
|
|
)
|
||
|
|
[ INHERITS ( parent_table [, ... ] ) ]
|
||
|
|
[ WITH OIDS | WITHOUT OIDS ]
|
||
|
|
where column_constraint is:
|
||
|
|
[ CONSTRAINT constraint_name ]
|
||
|
|
{ NOT NULL | NULL | UNIQUE | PRIMARY KEY |
|
||
|
|
CHECK (expression) |
|
||
|
|
REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ]
|
||
|
|
[ ON DELETE action ] [ ON UPDATE action ] }
|
||
|
|
[ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
|
||
|
|
and table_constraint is:
|
||
|
|
[ CONSTRAINT constraint_name ]
|
||
|
|
{ UNIQUE ( column_name [, ... ] ) |
|
||
|
|
PRIMARY KEY ( column_name [, ... ] ) |
|
||
|
|
CHECK ( expression ) |
|
||
|
|
FOREIGN KEY ( column_name [, ... ] ) REFERENCES reftable [ ( refcolumn [, ... ] ) ]
|
||
|
|
[ MATCH FULL | MATCH PARTIAL ] [ ON DELETE action ] [ ON UPDATE action ] }
|
||
|
|
[ DEFERRABLE | NOT DEFERRABLE ] [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
CREATE [ UNIQUE ] INDEX index_name ON table
|
||
|
|
[ USING acc_method ] ( column [ ops_name ] [, ...] )
|
||
|
|
[ WHERE predicate ]
|
||
|
|
CREATE [ UNIQUE ] INDEX index_name ON table
|
||
|
|
[ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] )
|
||
|
|
[ WHERE predicate ]
|
||
|
|
*/
|
||
|
|
function _indexSQL($idxname, $tabname, $flds, $idxoptions)
|
||
|
|
{
|
||
|
|
$sql = array();
|
||
|
|
|
||
|
|
if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
|
||
|
|
$sql[] = sprintf ($this->dropIndex, $idxname, $tabname);
|
||
|
|
if ( isset($idxoptions['DROP']) ) {
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($flds)) {
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
|
||
|
|
$unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : '';
|
||
|
|
|
||
|
|
$s = 'CREATE' . $unique . ' INDEX ' . $idxname . ' ON ' . $tabname . ' ';
|
||
|
|
|
||
|
|
if (isset($idxoptions['HASH'])) {
|
||
|
|
$s .= 'USING HASH ';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($idxoptions[$this->upperName])) {
|
||
|
|
$s .= $idxoptions[$this->upperName];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_array($flds)) {
|
||
|
|
$flds = implode(', ', $flds);
|
||
|
|
}
|
||
|
|
$s .= '(' . $flds . ')';
|
||
|
|
$sql[] = $s;
|
||
|
|
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _getSize($ftype, $ty, $fsize, $fprec, $options=false)
|
||
|
|
{
|
||
|
|
if (strlen($fsize) && $ty != 'X' && $ty != 'B' && $ty != 'I' && strpos($ftype,'(') === false) {
|
||
|
|
$ftype .= "(".$fsize;
|
||
|
|
if (strlen($fprec)) $ftype .= ",".$fprec;
|
||
|
|
$ftype .= ')';
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle additional options
|
||
|
|
*/
|
||
|
|
if (is_array($options)) {
|
||
|
|
foreach($options as $type=>$value) {
|
||
|
|
switch ($type) {
|
||
|
|
case 'ENUM':
|
||
|
|
$ftype .= '(' . $value . ')';
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $ftype;
|
||
|
|
}
|
||
|
|
|
||
|
|
function changeTableSQL($tablename, $flds, $tableoptions = false, $dropOldFlds=false)
|
||
|
|
{
|
||
|
|
global $ADODB_FETCH_MODE;
|
||
|
|
parent::changeTableSQL($tablename, $flds);
|
||
|
|
$save = $ADODB_FETCH_MODE;
|
||
|
|
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
|
||
|
|
if ($this->connection->fetchMode !== false) {
|
||
|
|
$savem = $this->connection->setFetchMode(false);
|
||
|
|
}
|
||
|
|
|
||
|
|
// check table exists
|
||
|
|
$save_handler = $this->connection->raiseErrorFn;
|
||
|
|
$this->connection->raiseErrorFn = '';
|
||
|
|
$cols = $this->metaColumns($tablename);
|
||
|
|
$this->connection->raiseErrorFn = $save_handler;
|
||
|
|
|
||
|
|
if (isset($savem)) {
|
||
|
|
$this->connection->setFetchMode($savem);
|
||
|
|
}
|
||
|
|
$ADODB_FETCH_MODE = $save;
|
||
|
|
|
||
|
|
$sqlResult=array();
|
||
|
|
if ( empty($cols)) {
|
||
|
|
$sqlResult=$this->createTableSQL($tablename, $flds, $tableoptions);
|
||
|
|
} else {
|
||
|
|
$sqlResultAdd = $this->addColumnSQL($tablename, $flds);
|
||
|
|
$sqlResultAlter = $this->alterColumnSQL($tablename, $flds, '', $tableoptions);
|
||
|
|
$sqlResult = array_merge((array)$sqlResultAdd, (array)$sqlResultAlter);
|
||
|
|
|
||
|
|
if ($dropOldFlds) {
|
||
|
|
// already exists, alter table instead
|
||
|
|
list($lines,$pkey,$idxs) = $this->_genFields($flds);
|
||
|
|
// genfields can return FALSE at times
|
||
|
|
if ($lines == null) {
|
||
|
|
$lines = array();
|
||
|
|
}
|
||
|
|
$alter = 'ALTER TABLE ' . $this->tableName($tablename);
|
||
|
|
foreach ( $cols as $id => $v ) {
|
||
|
|
if ( !isset($lines[$id]) ) {
|
||
|
|
$sqlResult[] = $alter . $this->dropCol . ' ' . $v->name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
return $sqlResult;
|
||
|
|
}
|
||
|
|
} // end class
|