fix: Migrator: Use correct underlying type for ARRAY columns in down …

…migrations (#236)

Co-authored-by: Kemal Hadimli <[email protected]>

migration/table.go

@@ -17,7 +17,7 @@ import (
 )
 
 const (
-	queryTableColumns   = `SELECT ARRAY_AGG(column_name::text) AS columns, ARRAY_AGG(data_type::text) AS types FROM information_schema.columns WHERE table_schema=$1 AND table_name=$2`
+	queryTableColumns   = `SELECT ARRAY_AGG(column_name::text) AS columns, ARRAY_AGG(udt_name::regtype::text) AS types FROM information_schema.columns WHERE table_schema=$1 AND table_name=$2`
 	addColumnToTable    = `ALTER TABLE IF EXISTS %s ADD COLUMN IF NOT EXISTS %v %v;`
 	dropColumnFromTable = `ALTER TABLE IF EXISTS %s DROP COLUMN IF EXISTS %v;`
 	renameColumnInTable = `-- ALTER TABLE %s RENAME COLUMN %v TO %v; -- uncomment to activate, remove ADD/DROP COLUMN above and below` // Can't have IF EXISTS here