From db45ea6f1e6307e2e64e62577a01cfc7f45520bb Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Tue, 18 Jan 2022 10:52:25 +0100
Subject: [PATCH] [jOOQ/jOOQ#12888] Parser should treat AS optional in CREATE
 TABLE AS SELECT

---
 jOOQ/src/main/java/org/jooq/impl/ParserImpl.java | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
index aa6347ccb1..f8cab8cf1b 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
@@ -4274,7 +4274,7 @@ final class DefaultParseContext extends AbstractScope implements ParseContext {
         boolean readonly = false;
         boolean ctas = false;
 
-        if (parseIf('(')) {
+        if (!peekSelectOrWith(true) && parseIf('(')) {
 
             columnLoop:
             do {
@@ -4379,8 +4379,7 @@ final class DefaultParseContext extends AbstractScope implements ParseContext {
         if (!fields.isEmpty())
             columnStep = columnStep.columns(fields);
 
-        if (ctas && parseKeyword("AS") ||
-           !ctas && parseKeywordIf("AS")) {
+        if (parseKeywordIf("AS") || peekSelectOrWith(true)) {
             boolean previousMetaLookupsForceIgnore = metaLookupsForceIgnore();
             CreateTableWithDataStep withDataStep = columnStep.as((Select<Record>) metaLookupsForceIgnore(false).parseQuery(true, true));
             metaLookupsForceIgnore(previousMetaLookupsForceIgnore);
@@ -4391,6 +4390,9 @@ final class DefaultParseContext extends AbstractScope implements ParseContext {
                 ? withDataStep.withNoData()
                 : withDataStep;
         }
+        else if (ctas) {
+            throw expected("AS, WITH, SELECT, or (");
+        }
         else {
             CreateTableConstraintStep constraintStep = constraints.isEmpty()
                 ? columnStep