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Code Editor : json_gcol.inc
# Order on stored and virtual generated columns with type JSON. CREATE TABLE t( j JSON, stored_gc JSON GENERATED ALWAYS AS (JSON_EXTRACT(j, '$[0]')) STORED, virtual_gc JSON GENERATED ALWAYS AS (JSON_EXTRACT(j, '$[1]')) VIRTUAL); INSERT INTO t(j) VALUES (JSON_ARRAY(1, 2)), (JSON_ARRAY(2, 1)), (JSON_ARRAY(10, 10)), (JSON_ARRAY(5)); SELECT * FROM t ORDER BY stored_gc; SELECT * FROM t ORDER BY virtual_gc; DROP TABLE t; --echo # ---------------------------------------------------------------------- --echo # Test of generated columns that call JSON functions --echo # ---------------------------------------------------------------------- CREATE TABLE t(id INT, j JSON, gc INT GENERATED ALWAYS AS (JSON_EXTRACT(j, '$[0]'))); INSERT INTO t(id, j) VALUES (0, '"5"'), (1, '[]'), (2, '[1,2]'), (3, '5'); --error ER_INVALID_JSON_VALUE_FOR_CAST INSERT INTO t(j) VALUES ('{}'); --error ER_INVALID_JSON_VALUE_FOR_CAST INSERT INTO t(j) VALUES ('{"a":1}'); --error ER_INVALID_JSON_VALUE_FOR_CAST INSERT INTO t(j) VALUES ('"abc"'); --error ER_INVALID_JSON_TEXT INSERT INTO t(j) VALUES (''); --error ER_INVALID_JSON_TEXT INSERT INTO t(j) VALUES ('['); SELECT * FROM t ORDER BY id; UPDATE t SET j = '[123]'; SELECT * FROM t ORDER BY id; --error ER_INVALID_JSON_TEXT UPDATE t SET j = '['; DROP TABLE t; CREATE TABLE t(id INT, j JSON, gc JSON GENERATED ALWAYS AS (JSON_ARRAY(j))); INSERT INTO t(id, j) VALUES (1, '1'), (2, '[true, false]'), (3, '{"a":1,"b":2}'); --error ER_INVALID_JSON_TEXT INSERT INTO t(j) VALUES (''); --error ER_INVALID_JSON_TEXT INSERT INTO t(j) VALUES ('['); SELECT * FROM t ORDER BY id; UPDATE t SET j = '"abc"'; SELECT * FROM t ORDER BY id; --error ER_INVALID_JSON_TEXT UPDATE t SET j = '['; DROP TABLE t; # Timestamp values sometimes got printed as base64 strings. CREATE TABLE t(ts TIMESTAMP, j JSON AS (CAST(ts AS JSON))); INSERT INTO t(ts) VALUES ('2000-01-01 00:00:00'); SELECT CAST(JSON_ARRAY(ts, j) AS CHAR) FROM t; DROP TABLE t; --echo # --echo # Bug#21491442 VARIANT::FORCED_RETURN() [WITH T = JSON_SCALAR*]: --echo # ASSERTION `FALSE' FAILED. --echo # create table t (a json, b blob, c int generated always as (1!=a) virtual not null) engine=innodb; insert into t(a) values('[1]'); insert into t(a) values('[1]'); select a,c from t; prepare ps1 from 'insert into t(a) values(?)'; set @a='[1]'; execute ps1 using @a; execute ps1 using @a; select a,c from t; drop table t; create temporary table t (a json, b blob, c int generated always as (1!=a) virtual not null) engine=innodb; insert into t(a) values('[1]'); insert into t(a) values('[1]'); select a,c from t; prepare ps1 from 'insert into t(a) values(?)'; set @a='[1]'; execute ps1 using @a; execute ps1 using @a; select a,c from t; drop table t; SET NAMES utf8; --echo # --echo # WL#8170: Expression analyzer for GC. --echo # Queries with GC and JSON_EXTRACT compared to strings should use index --echo # create table t1( f1 json, gc varchar(20) character set utf8mb4 as (json_unquote(json_extract(f1,"$"))) stored, key gc_idx(gc)); insert into t1(f1) values ('"qwe"'),('"rty"'),('"uiop"'); insert into t1(f1) values ('"zxc"'),('"vbn"'),('"mnb"'); insert into t1(f1) select f1 from t1; insert into t1(f1) select f1 from t1; insert into t1(f1) values ('"asd"'),('"asdf"'),('"asasas"'); set @save_opt_sw= @@optimizer_switch; # Innodb has some issues with ICP & GC stuff set @@optimizer_switch="index_condition_pushdown=off"; select f1 from t1 where gc = "asd"; explain select f1 from t1 where gc = "asd"; select f1 from t1 where json_extract(f1,"$") = "asd"; explain select f1 from t1 where json_extract(f1,"$") = "asd"; select f1 from t1 where "asd" = json_extract(f1,"$"); explain select f1 from t1 where "asd" = json_extract(f1,"$"); select f1 from t1 where gc > "z"; explain select f1 from t1 where gc > "z"; select f1 from t1 where json_extract(f1,"$") > "z"; explain select f1 from t1 where json_extract(f1,"$") > "z"; select f1 from t1 where gc > "v" and gc < "z"; explain select f1 from t1 where gc > "v" and gc < "z"; select f1 from t1 where json_extract(f1,"$") > "v" and json_extract(f1,"$") < "z"; explain select f1 from t1 where json_extract(f1,"$") > "v" and json_extract(f1,"$") < "z"; select f1 from t1 where gc between "v" and "z"; explain select f1 from t1 where gc between "v" and "z"; select f1 from t1 where json_extract(f1,"$") between "v" and "z"; explain select f1 from t1 where json_extract(f1,"$") between "v" and "z"; select f1 from t1 where gc in ("asd","asasas","asdf"); explain select f1 from t1 where gc in ("asd","asasas","asdf"); select f1 from t1 where json_extract(f1,"$") in ("asd","asasas","asdf"); explain select f1 from t1 where json_extract(f1,"$") in ("asd","asasas","asdf"); select f1 from t1 where json_unquote(json_extract(f1,"$"))="asd"; explain select f1 from t1 where json_unquote(json_extract(f1,"$"))="asd"; set @@optimizer_switch= @save_opt_sw; drop table t1; create table t1(f1 varchar(10), gc varchar(10) as (json_unquote(f1)) stored, key gc_idx(gc)); insert into t1(f1) values ('"qwe"'),('"rty"'),('"uiop"'); select f1 from t1 where lower(f1)="qwe"; drop table t1; --echo # --echo # --echo # Bug#21054516:QUERY HAVING SQL_BIG_RESULT ON JSON DATA GIVES EXTRA --echo # ROWS IN OUTPUT --echo # CREATE TABLE t1 ( pk integer auto_increment key, col_varchar_255_utf8_key varchar(255) CHARACTER SET utf8 ); INSERT INTO t1 VALUES (NULL, 'q') , (NULL, 'tgzvsj') , (NULL, 'b') , (NULL, 'q') , (NULL, 'up') , (NULL, 'up') ; ALTER TABLE t1 ADD COLUMN json_varchar255_utf8_key json; UPDATE t1 SET json_varchar255_utf8_key = JSON_OBJECT('col_varchar_255_utf8_key', col_varchar_255_utf8_key); ALTER TABLE t1 MODIFY col_varchar_255_utf8_key VARCHAR(255) GENERATED ALWAYS AS (JSON_EXTRACT(json_varchar255_utf8_key,'$.col_varchar_255_utf8_key[0]')) STORED; SELECT SQL_BIG_RESULT table1.json_varchar255_utf8_key AS field1, count(*) FROM t1 AS table1 LEFT JOIN t1 AS table2 ON table1.pk <= table2.pk GROUP BY field1; DROP TABLE t1;
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