adding json_table function
#1142
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| // 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. | ||
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| package queries | ||
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| import ( | ||
| "github.com/dolthub/go-mysql-server/sql" | ||
| ) | ||
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| var JSONTableQueryTests = []QueryTest{ | ||
|
There was a problem hiding this comment. Need some tests joining json tables to physical tables If they don't work, add skipped tests There was a problem hiding this comment. Also tests where the expression for json data comes from a column, not a string literal |
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| { | ||
| 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 \"$.b\")) as tt;", | ||
| Expected: []sql.Row{ | ||
| {1, 2}, | ||
| {3, 4}, | ||
| }, | ||
| }, | ||
| { | ||
| Query: "SELECT * FROM JSON_TABLE('[{\"a\":1.123, \"b\":2.234},{\"a\":3.345, \"b\":4.456}]',\"$[*]\" COLUMNS(x float path \"$.a\", y float path \"$.b\")) as tt;", | ||
| Expected: []sql.Row{ | ||
| {1.123, 2.234}, | ||
| {3.345, 4.456}, | ||
| }, | ||
| }, | ||
| { | ||
| 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 @@ | ||
|
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| exec | ||
| CREATE TABLE `json_table_tables` ( | ||
| `t` varchar(100) | ||
| ) | ||
| ---- | ||
|
|
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| exec | ||
| insert into json_table_tables values | ||
| ('[{"a": 1},{"b": 2},{"c": 3},{"d": 4}]'); | ||
| ---- |
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?
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There are rounding errors when using
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There really shouldn't be, this is a sign of a bug
Floats should round-trip with no precision loss
Does it come from parsing JSON?