From b3a2a6be48700e26c2cbb607745ac99b688dac31 Mon Sep 17 00:00:00 2001
From: Nikhil Benesch <nikhil.benesch@gmail.com>
Date: Wed, 29 May 2019 16:48:04 -0400
Subject: [PATCH] Support CREATE TABLE with no columns

This is weird, but supported by PostgreSQL.
---
 src/sqlparser.rs          | 2 +-
 tests/sqlparser_common.rs | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/sqlparser.rs b/src/sqlparser.rs
index 85121eef..ca1d5ba5 100644
--- a/src/sqlparser.rs
+++ b/src/sqlparser.rs
@@ -833,7 +833,7 @@ impl Parser {
     fn parse_columns(&mut self) -> Result<(Vec<SQLColumnDef>, Vec<TableConstraint>), ParserError> {
         let mut columns = vec![];
         let mut constraints = vec![];
-        if !self.consume_token(&Token::LParen) {
+        if !self.consume_token(&Token::LParen) || self.consume_token(&Token::RParen) {
             return Ok((columns, constraints));
         }
 
diff --git a/tests/sqlparser_common.rs b/tests/sqlparser_common.rs
index ab5ce4d2..badce3d2 100644
--- a/tests/sqlparser_common.rs
+++ b/tests/sqlparser_common.rs
@@ -820,6 +820,12 @@ fn parse_create_external_table() {
     }
 }
 
+#[test]
+fn parse_create_table_empty() {
+    // Zero-column tables are weird, but supported by at least PostgreSQL.
+    let _ = verified_stmt("CREATE TABLE t ()");
+}
+
 #[test]
 fn parse_alter_table_constraints() {
     check_one("CONSTRAINT address_pkey PRIMARY KEY (address_id)");