2019-09-06 23:53:10 +08:00

81 lines
1.8 KiB
PHP
Executable File

<?php
class LtDbSqlAdapterPgsql implements LtDbSqlAdapter
{
public function setCharset($charset)
{
return "SET client_encoding TO '$charset'";
}
public function setSchema($schema)
{
return "SET search_path TO $schema";
}
public function beginTransaction()
{
return "";
}
public function commit()
{
return "";
}
public function rollBack()
{
return "";
}
public function showSchemas($database)
{
}
public function showTables($schema)
{
return "SELECT case when n.nspname='public' then c.relname else n.nspname||'.'||c.relname end as relname
FROM pg_class c join pg_namespace n on (c.relnamespace=n.oid)
WHERE c.relkind = 'r'
AND n.nspname NOT IN ('information_schema','pg_catalog')
AND n.nspname NOT LIKE 'pg_temp%'
AND n.nspname NOT LIKE 'pg_toast%'
ORDER BY relname";
}
public function showFields($table)
{
return "SELECT a.attnum, a.attname AS field, t.typname AS type,
format_type(a.atttypid, a.atttypmod) AS complete_type,
a.attnotnull AS isnotnull,
( SELECT 't' FROM pg_index
WHERE c.oid = pg_index.indrelid
AND pg_index.indkey[0] = a.attnum
AND pg_index.indisprimary = 't') AS pri,
(SELECT pg_attrdef.adsrc FROM pg_attrdef
WHERE c.oid = pg_attrdef.adrelid
AND pg_attrdef.adnum=a.attnum) AS default
FROM pg_attribute a, pg_class c, pg_type t
WHERE c.relname = '$table'
AND a.attnum > 0
AND a.attrelid = c.oid
AND a.atttypid = t.oid
ORDER BY a.attnum";
}
public function limit($limit, $offset)
{
return " LIMIT $limit OFFSET $offset";
}
public function getSchemas($queryResult)
{
}
public function getTables($queryResult)
{
}
public function getFields($queryResult)
{
}
public function detectQueryType($sql)
{
}
}