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diff --git a/src/test/regress/sql/sqljson_jsontable.sql b/src/test/regress/sql/sqljson_jsontable.sql
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+-- JSON_TABLE
+
+-- Should fail (JSON_TABLE can be used only in FROM clause)
+SELECT JSON_TABLE('[]', '$');
+
+-- Only allow EMPTY and ERROR for ON ERROR
+SELECT * FROM JSON_TABLE('[]', 'strict $.a' COLUMNS (js2 int PATH '$') DEFAULT 1 ON ERROR);
+SELECT * FROM JSON_TABLE('[]', 'strict $.a' COLUMNS (js2 int PATH '$') NULL ON ERROR);
+SELECT * FROM JSON_TABLE('[]', 'strict $.a' COLUMNS (js2 int PATH '$') EMPTY ON ERROR);
+SELECT * FROM JSON_TABLE('[]', 'strict $.a' COLUMNS (js2 int PATH '$') ERROR ON ERROR);
+
+-- Column and path names must be distinct
+SELECT * FROM JSON_TABLE(jsonb'"1.23"', '$.a' as js2 COLUMNS (js2 int path '$'));
+
+-- Should fail (no columns)
+SELECT * FROM JSON_TABLE(NULL, '$' COLUMNS ());
+
+SELECT * FROM JSON_TABLE (NULL::jsonb, '$' COLUMNS (v1 timestamp)) AS f (v1, v2);
+
+--duplicated column name
+SELECT * FROM JSON_TABLE(jsonb'"1.23"', '$.a' COLUMNS (js2 int path '$', js2 int path '$'));
+
+--return composite data type.
+create type comp as (a int, b int);
+SELECT * FROM JSON_TABLE(jsonb '{"rec": "(1,2)"}', '$' COLUMNS (id FOR ORDINALITY, comp comp path '$.rec' omit quotes)) jt;
+drop type comp;
+
+-- NULL => empty table
+SELECT * FROM JSON_TABLE(NULL::jsonb, '$' COLUMNS (foo int)) bar;
+SELECT * FROM JSON_TABLE(jsonb'"1.23"', 'strict $.a' COLUMNS (js2 int PATH '$'));
+
+--
+SELECT * FROM JSON_TABLE(jsonb '123', '$'
+ COLUMNS (item int PATH '$', foo int)) bar;
+
+-- JSON_TABLE: basic functionality
+CREATE DOMAIN jsonb_test_domain AS text CHECK (value <> 'foo');
+CREATE TEMP TABLE json_table_test (js) AS
+ (VALUES
+ ('1'),
+ ('[]'),
+ ('{}'),
+ ('[1, 1.23, "2", "aaaaaaa", "foo", null, false, true, {"aaa": 123}, "[1,2]", "\"str\""]')
+ );
+
+-- Regular "unformatted" columns
+SELECT *
+FROM json_table_test vals
+ LEFT OUTER JOIN
+ JSON_TABLE(
+ vals.js::jsonb, 'lax $[*]'
+ COLUMNS (
+ id FOR ORDINALITY,
+ "int" int PATH '$',
+ "text" text PATH '$',
+ "char(4)" char(4) PATH '$',
+ "bool" bool PATH '$',
+ "numeric" numeric PATH '$',
+ "domain" jsonb_test_domain PATH '$',
+ js json PATH '$',
+ jb jsonb PATH '$'
+ )
+ ) jt
+ ON true;
+
+-- "formatted" columns
+SELECT *
+FROM json_table_test vals
+ LEFT OUTER JOIN
+ JSON_TABLE(
+ vals.js::jsonb, 'lax $[*]'
+ COLUMNS (
+ id FOR ORDINALITY,
+ jst text FORMAT JSON PATH '$',
+ jsc char(4) FORMAT JSON PATH '$',
+ jsv varchar(4) FORMAT JSON PATH '$',
+ jsb jsonb FORMAT JSON PATH '$',
+ jsbq jsonb FORMAT JSON PATH '$' OMIT QUOTES
+ )
+ ) jt
+ ON true;
+
+-- EXISTS columns
+SELECT *
+FROM json_table_test vals
+ LEFT OUTER JOIN
+ JSON_TABLE(
+ vals.js::jsonb, 'lax $[*]'
+ COLUMNS (
+ id FOR ORDINALITY,
+ exists1 bool EXISTS PATH '$.aaa',
+ exists2 int EXISTS PATH '$.aaa',
+ exists3 int EXISTS PATH 'strict $.aaa' UNKNOWN ON ERROR,
+ exists4 text EXISTS PATH 'strict $.aaa' FALSE ON ERROR
+ )
+ ) jt
+ ON true;
+
+-- Other miscellaneous checks
+SELECT *
+FROM json_table_test vals
+ LEFT OUTER JOIN
+ JSON_TABLE(
+ vals.js::jsonb, 'lax $[*]'
+ COLUMNS (
+ id FOR ORDINALITY,
+ aaa int, -- "aaa" has implicit path '$."aaa"'
+ aaa1 int PATH '$.aaa',
+ js2 json PATH '$',
+ jsb2w jsonb PATH '$' WITH WRAPPER,
+ jsb2q jsonb PATH '$' OMIT QUOTES,
+ ia int[] PATH '$',
+ ta text[] PATH '$',
+ jba jsonb[] PATH '$'
+ )
+ ) jt
+ ON true;
+
+-- JSON_TABLE: Test backward parsing
+
+CREATE VIEW jsonb_table_view2 AS
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ "int" int PATH '$',
+ "text" text PATH '$',
+ "char(4)" char(4) PATH '$',
+ "bool" bool PATH '$',
+ "numeric" numeric PATH '$',
+ "domain" jsonb_test_domain PATH '$'));
+
+CREATE VIEW jsonb_table_view3 AS
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ js json PATH '$',
+ jb jsonb PATH '$',
+ jst text FORMAT JSON PATH '$',
+ jsc char(4) FORMAT JSON PATH '$',
+ jsv varchar(4) FORMAT JSON PATH '$'));
+
+CREATE VIEW jsonb_table_view4 AS
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ jsb jsonb FORMAT JSON PATH '$',
+ jsbq jsonb FORMAT JSON PATH '$' OMIT QUOTES,
+ aaa int, -- implicit path '$."aaa"',
+ aaa1 int PATH '$.aaa'));
+
+CREATE VIEW jsonb_table_view5 AS
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ exists1 bool EXISTS PATH '$.aaa',
+ exists2 int EXISTS PATH '$.aaa' TRUE ON ERROR,
+ exists3 text EXISTS PATH 'strict $.aaa' UNKNOWN ON ERROR));
+
+CREATE VIEW jsonb_table_view6 AS
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ js2 json PATH '$',
+ jsb2w jsonb PATH '$' WITH WRAPPER,
+ jsb2q jsonb PATH '$' OMIT QUOTES,
+ ia int[] PATH '$',
+ ta text[] PATH '$',
+ jba jsonb[] PATH '$'));
+
+\sv jsonb_table_view2
+\sv jsonb_table_view3
+\sv jsonb_table_view4
+\sv jsonb_table_view5
+\sv jsonb_table_view6
+
+EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM jsonb_table_view2;
+EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM jsonb_table_view3;
+EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM jsonb_table_view4;
+EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM jsonb_table_view5;
+EXPLAIN (COSTS OFF, VERBOSE) SELECT * FROM jsonb_table_view6;
+
+-- JSON_TABLE() with alias
+EXPLAIN (COSTS OFF, VERBOSE)
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ id FOR ORDINALITY,
+ "int" int PATH '$',
+ "text" text PATH '$'
+ )) json_table_func;
+
+EXPLAIN (COSTS OFF, FORMAT JSON, VERBOSE)
+SELECT * FROM
+ JSON_TABLE(
+ jsonb 'null', 'lax $[*]' PASSING 1 + 2 AS a, json '"foo"' AS "b c"
+ COLUMNS (
+ id FOR ORDINALITY,
+ "int" int PATH '$',
+ "text" text PATH '$'
+ )) json_table_func;
+
+DROP VIEW jsonb_table_view2;
+DROP VIEW jsonb_table_view3;
+DROP VIEW jsonb_table_view4;
+DROP VIEW jsonb_table_view5;
+DROP VIEW jsonb_table_view6;
+DROP DOMAIN jsonb_test_domain;
+
+-- JSON_TABLE: only one FOR ORDINALITY columns allowed
+SELECT * FROM JSON_TABLE(jsonb '1', '$' COLUMNS (id FOR ORDINALITY, id2 FOR ORDINALITY, a int PATH '$.a' ERROR ON EMPTY)) jt;
+SELECT * FROM JSON_TABLE(jsonb '1', '$' COLUMNS (id FOR ORDINALITY, a int PATH '$' ERROR ON EMPTY)) jt;
+
+-- JSON_TABLE: ON EMPTY/ON ERROR behavior
+SELECT *
+FROM
+ (VALUES ('1'), ('"err"')) vals(js),
+ JSON_TABLE(vals.js::jsonb, '$' COLUMNS (a int PATH '$')) jt;
+
+SELECT *
+FROM
+ (VALUES ('1'), ('"err"')) vals(js)
+ LEFT OUTER JOIN
+ JSON_TABLE(vals.js::jsonb, '$' COLUMNS (a int PATH '$' ERROR ON ERROR)) jt
+ ON true;
+
+-- TABLE-level ERROR ON ERROR is not propagated to columns
+SELECT *
+FROM
+ (VALUES ('1'), ('"err"')) vals(js)
+ LEFT OUTER JOIN
+ JSON_TABLE(vals.js::jsonb, '$' COLUMNS (a int PATH '$' ERROR ON ERROR)) jt
+ ON true;
+
+SELECT * FROM JSON_TABLE(jsonb '1', '$' COLUMNS (a int PATH '$.a' ERROR ON EMPTY)) jt;
+SELECT * FROM JSON_TABLE(jsonb '1', '$' COLUMNS (a int PATH 'strict $.a' ERROR ON ERROR) ERROR ON ERROR) jt;
+SELECT * FROM JSON_TABLE(jsonb '1', '$' COLUMNS (a int PATH 'lax $.a' ERROR ON EMPTY) ERROR ON ERROR) jt;
+
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int PATH '$' DEFAULT 1 ON EMPTY DEFAULT 2 ON ERROR)) jt;
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int PATH 'strict $.a' DEFAULT 1 ON EMPTY DEFAULT 2 ON ERROR)) jt;
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int PATH 'lax $.a' DEFAULT 1 ON EMPTY DEFAULT 2 ON ERROR)) jt;
+
+-- JSON_TABLE: EXISTS PATH types
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int4 EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int2 EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a int8 EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a float4 EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a char(3) EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a json EXISTS PATH '$.a'));
+SELECT * FROM JSON_TABLE(jsonb '"a"', '$' COLUMNS (a jsonb EXISTS PATH '$.a'));
+
+-- JSON_TABLE: WRAPPER/QUOTES clauses on scalar columns
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text PATH '$' KEEP QUOTES ON SCALAR STRING));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text PATH '$' OMIT QUOTES ON SCALAR STRING));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text FORMAT JSON PATH '$' KEEP QUOTES));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text FORMAT JSON PATH '$' OMIT QUOTES));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text FORMAT JSON PATH '$' WITHOUT WRAPPER KEEP QUOTES));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text PATH '$' WITHOUT WRAPPER OMIT QUOTES));
+
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text FORMAT JSON PATH '$' WITH WRAPPER));
+
+-- Error: QUOTES clause meaningless when WITH WRAPPER is present
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text FORMAT JSON PATH '$' WITH WRAPPER KEEP QUOTES));
+SELECT * FROM JSON_TABLE(jsonb '"world"', '$' COLUMNS (item text PATH '$' WITH WRAPPER OMIT QUOTES));
+
+-- Test PASSING args
+SELECT *
+FROM JSON_TABLE(
+ jsonb '[1,2,3]',
+ '$[*] ? (@ < $x)'
+ PASSING 3 AS x
+ COLUMNS (y text FORMAT JSON PATH '$')
+ ) jt;
+
+-- PASSING arguments are also passed to column paths
+SELECT *
+FROM JSON_TABLE(
+ jsonb '[1,2,3]',
+ '$[*] ? (@ < $x)'
+ PASSING 10 AS x, 3 AS y
+ COLUMNS (a text FORMAT JSON PATH '$ ? (@ < $y)')
+ ) jt;
+
+-- Should fail (not supported)
+SELECT * FROM JSON_TABLE(jsonb '{"a": 123}', '$' || '.' || 'a' COLUMNS (foo int));
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