feedc0de/postgresql-for-wordpress
1
0
Fork 0
forked from PostgreSQL-For-Wordpress/postgresql-for-wordpress
Code Pull Requests Activity

Merge pull request #91 from PostgreSQL-For-Wordpress/fix-show-variables

Browse Source 
correctly emulate Show Variables command in postgres
This commit is contained in:
Matthew Bucci
2024-01-16 21:41:30 -08:00
committed by GitHub
parent 94259e408b 487657a642
commit d45c7d58d9
1 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
pg4wp/rewriters/ShowVariablesSQLRewriter.php
View File

@ -5,12 +5,12 @@ class ShowVariablesSQLRewriter extends AbstractSQLRewriter
public function rewrite(): string
{
$sql = $this->original();
$table = $this->extractVariableName($sql);
$variableName = $this->extractVariableName($sql);
return $this->generatePostgres($sql, $variableName);
}
/**
* Extracts table name from a "SHOW FULL COLUMNS" SQL statement.
* Extracts Variable name from a "SHOW VARIABLES LIKE " SQL statement.
*
* @param string $sql The SQL statement
* @return string|null The table name if found, or null otherwise
@ -37,7 +37,11 @@ class ShowVariablesSQLRewriter extends AbstractSQLRewriter
return "SELECT '$variableName' AS \"Variable_name\", '' AS \"Value\";";
}
// return untransformed sql
return $sql;
if ($variableName == "max_allowed_packet") {
// Act like 1GB packet size, in practice this limit doesn't actually exist for postgres, we just want to fool WP
return "SELECT '$variableName' AS \"Variable_name\", '1073741824' AS \"Value\";";
}
return "SELECT name as \"Variable_name\", setting as \"Value\" FROM pg_settings WHERE name = '$variableName';";
}
}