From 4f25c51d033b81c486c8c6908b57124cdf18ec3e Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Wed, 8 Dec 2021 14:14:07 +0100
Subject: [PATCH] [jOOQ/jOOQ#12712] Parser mis-interprets KEY columns as MySQL
 KEY (INDEX) specification if unquoted and of type VARCHAR(n)

---
 jOOQ/src/main/java/org/jooq/impl/ParserImpl.java | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
index 7f76778038..3072aaffc0 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
@@ -4279,11 +4279,14 @@ final class DefaultParseContext extends AbstractScope implements ParseContext {
 
                     int p2 = position();
 
-                    // [#7348] [#7651] [#9132] Look ahead if the next tokens
-                    // indicate a MySQL index definition
-                    if (parseIf('(') || (parseIdentifierIf() != null
-                                && parseUsingIndexTypeIf()
-                                && parseIf('('))) {
+                    // [#7348] [#7651] [#9132] [#12712]
+                    // Look ahead if the next tokens indicate a MySQL index definition
+                    if (parseIf('(') || (
+                            parseDataTypeIf(false) == null
+                         && parseIdentifierIf() != null
+                         && parseUsingIndexTypeIf()
+                         && parseIf('('))
+                    ) {
                         position(p2);
                         indexes.add(parseIndexSpecification(tableName));