should be it

external/duckdb/test/sql/create/create_as.test

@@ -0,0 +1,135 @@
+# name: test/sql/create/create_as.test
+# description: Test CREATE TABLE AS SELECT (CTAS) statements
+# group: [create]
+
+statement ok
+PRAGMA enable_verification
+
+statement ok
+CREATE TABLE tbl1 AS SELECT 1;
+
+query I
+SELECT * FROM tbl1;
+----
+1
+
+statement ok
+CREATE TABLE tbl2 AS SELECT 2 AS f;
+
+query I
+SELECT * FROM tbl2;
+----
+2
+
+statement ok
+CREATE OR REPLACE TABLE tbl3 AS SELECT 3;
+
+query I
+SELECT * FROM tbl3;
+----
+3
+
+statement error
+CREATE TABLE tbl1 AS SELECT 3;
+----
+
+statement ok
+CREATE OR REPLACE TABLE tbl1 AS SELECT 4;
+
+query I
+SELECT * FROM tbl1;
+----
+4
+
+statement ok
+CREATE OR REPLACE TABLE tbl1 AS SELECT 'hello' UNION ALL SELECT 'world';
+
+query I
+SELECT * FROM tbl1;
+----
+hello
+world
+
+statement ok
+CREATE OR REPLACE TABLE tbl1 AS SELECT 5 WHERE false;
+
+query I
+SELECT * FROM tbl1;
+----
+
+statement error
+CREATE TABLE tbl4 IF NOT EXISTS AS SELECT 4;
+----
+Parser Error: syntax error at or near "IF"
+
+statement error
+CREATE OR REPLACE TABLE tbl4 IF NOT EXISTS AS SELECT 4;
+----
+Parser Error: syntax error at or near "IF"
+
+### CREATE TABLE t(col1, col2) AS SELECT ... 
+statement ok
+CREATE TABLE tbl4(col1, col2) AS SELECT 1, 'hello';
+
+query II
+SELECT * FROM tbl4;
+----
+1	hello
+
+
+statement ok
+CREATE OR REPLACE TABLE tbl4(col1, col2) AS SELECT 2, 'duck';
+
+query II
+SELECT * FROM tbl4;
+----
+2	duck
+
+
+statement ok
+CREATE TABLE IF NOT EXISTS tbl5(col1, col2) AS SELECT 3, 'database';
+
+query II
+SELECT * FROM tbl5;
+----
+3	database
+
+# define a column name need quote
+statement ok
+CREATE OR REPLACE TABLE tbl5(col1, "col need ' quote") AS SELECT 3.5, 'quote';
+
+query II
+SELECT * FROM tbl5;
+----
+3.5	quote
+
+#colname and query mismatch
+statement ok
+CREATE TABLE tbl6(col1) AS SELECT 4 ,'mismatch';
+
+query II
+SELECT * FROM tbl6;
+----
+4	mismatch
+
+statement error
+CREATE TABLE tbl7(col1, col2) AS SELECT 5;
+----
+Binder Error: Target table has more colum names than query result.
+
+# WITH NO DATA / WITH DATA
+statement ok
+CREATE TABLE tbl8 AS SELECT 42 WITH NO DATA
+
+query I
+SELECT COUNT(*) FROM tbl8;
+----
+0
+
+statement ok
+CREATE TABLE tbl9 AS SELECT 42 WITH DATA
+
+query I
+SELECT COUNT(*) FROM tbl9;
+----
+1