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Merge pull request #1142 from dolthub/james/json_table
adding `json_table` function
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| // Copyright 2022 Dolthub, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package queries | ||
|
|
||
| import ( | ||
| "github.com/dolthub/go-mysql-server/sql" | ||
| ) | ||
|
|
||
| var JSONTableQueryTests = []QueryTest{ | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE(NULL,'$[*]' COLUMNS(x int path '$.a')) as t;", | ||
| Expected: []sql.Row{}, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE('[{\"a\":1},{\"a\":2}]','$[*]' COLUMNS(x varchar(100) path '$.a')) as tt;", | ||
| Expected: []sql.Row{ | ||
| {"1"}, | ||
| {"2"}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE('[{\"a\":1, \"b\":2},{\"a\":3, \"b\":4}]',\"$[*]\" COLUMNS(x int path '$.a', y int path '$.b')) as tt;", | ||
| Expected: []sql.Row{ | ||
| {1, 2}, | ||
| {3, 4}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE('[{\"a\":1.5, \"b\":2.25},{\"a\":3.125, \"b\":4.0625}]','$[*]' COLUMNS(x float path '$.a', y float path '$.b')) as tt;", | ||
| Expected: []sql.Row{ | ||
| {1.5, 2.25}, | ||
| {3.125, 4.0625}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE(concat('[{},','{}]'),'$[*]' COLUMNS(x varchar(100) path '$.a',y varchar(100) path '$.b')) as t;", | ||
| Expected: []sql.Row{ | ||
| {nil, nil}, | ||
| {nil, nil}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t1 join JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t2;", | ||
| Expected: []sql.Row{ | ||
| {1, 1}, | ||
| {1, 2}, | ||
| {2, 1}, | ||
| {2, 2}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t1 join one_pk order by x;", | ||
| Expected: []sql.Row{ | ||
| {1, 0, 0, 1, 2, 3, 4}, | ||
| {1, 1, 10, 11, 12, 13, 14}, | ||
| {1, 2, 20, 21, 22, 23, 24}, | ||
| {1, 3, 30, 31, 32, 33, 34}, | ||
| {2, 0, 0, 1, 2, 3, 4}, | ||
| {2, 1, 10, 11, 12, 13, 14}, | ||
| {2, 2, 20, 21, 22, 23, 24}, | ||
| {2, 3, 30, 31, 32, 33, 34}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from one_pk join JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t1 order by x;", | ||
| Expected: []sql.Row{ | ||
| {0, 0, 1, 2, 3, 4, 1}, | ||
| {1, 10, 11, 12, 13, 14, 1}, | ||
| {2, 20, 21, 22, 23, 24, 1}, | ||
| {3, 30, 31, 32, 33, 34, 1}, | ||
| {0, 0, 1, 2, 3, 4, 2}, | ||
| {1, 10, 11, 12, 13, 14, 2}, | ||
| {2, 20, 21, 22, 23, 24, 2}, | ||
| {3, 30, 31, 32, 33, 34, 2}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t1 union select * from JSON_TABLE('[{\"b\":3},{\"b\":4}]', '$[*]' COLUMNS(y int path '$.b')) as t2", | ||
| Expected: []sql.Row{ | ||
| {1}, | ||
| {2}, | ||
| {3}, | ||
| {4}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from one_pk where pk in (select x from JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) as t)", | ||
| Expected: []sql.Row{ | ||
| {1, 10, 11, 12, 13, 14}, | ||
| {2, 20, 21, 22, 23, 24}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "select * from JSON_TABLE('[{\"a\":1},{\"a\":2}]', '$[*]' COLUMNS(x int path '$.a')) t1 where x in (select y from JSON_TABLE('[{\"b\":1},{\"b\":100}]', '$[*]' COLUMNS(y int path '$.b')) as t2)", | ||
| Expected: []sql.Row{ | ||
| {1}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE((select t from json_table_tables),'$[*]' COLUMNS(i int path '$.a', j int path '$.b', k int path '$.c', l int path '$.d')) as tt;", | ||
| Expected: []sql.Row{ | ||
| {1, nil, nil, nil}, | ||
| {nil, 2, nil, nil}, | ||
| {nil, nil, 3, nil}, | ||
| {nil, nil, nil, 4}, | ||
| }, | ||
| }, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
|
|
||
| exec | ||
| CREATE TABLE `json_table_tables` ( | ||
| `t` varchar(100) | ||
| ) | ||
| ---- | ||
|
|
||
| exec | ||
| insert into json_table_tables values | ||
| ('[{"a": 1},{"b": 2},{"c": 3},{"d": 4}]'); | ||
| ---- |
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