PostgreSQL-For-Wordpress/postgresql-for-wordpress
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Convert HAVING without GROUP BY to WHERE

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Fixes #9

Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
This commit is contained in:
Kevin Locke
2017-04-14 12:54:14 -06:00
parent 6587b4085b
commit 35e0af4252
1 changed files with 12 additions and 0 deletions
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12
pg4wp/driver_pgsql.php
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@ -329,6 +329,18 @@
if( isset($wpdb) && false !== strpos( $sql, $wpdb->comments))
$sql = str_replace(' comment_id ', ' comment_ID ', $sql);
// MySQL treats a HAVING clause without GROUP BY like WHERE
if( false !== strpos($sql, 'HAVING') && false === strpos($sql, 'GROUP BY'))
{
if( false === strpos($sql, 'WHERE'))
$sql = str_replace('HAVING', 'WHERE', $sql);
else
{
$pattern = '/WHERE\s+(.*?)\s+HAVING\s+(.*?)(\s*(?:ORDER|LIMIT|PROCEDURE|INTO|FOR|LOCK|$))/';
$sql = preg_replace( $pattern, 'WHERE ($1) AND ($2) $3', $sql);
}
}
// MySQL allows integers to be used as boolean expressions
// where 0 is false and all other values are true.
//