lava-oushudb-dt-sql-parser/test/parser/mysql/syntax/fixtures/alterTableAndGeneratedColumns.sql
琉易 428d851913
feat: #190 improve mysql grammer (#196)
* refactor: generic rename to mysql

* refactor: g4 with mysql syntax

* test: mysql syntax

* refactor: remove useless keywords

* refactor: remove nonReserved keywords

* refactor: lint specificFunction

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Co-authored-by: liuyi <liuyi@dtstack.com>
2023-11-27 15:25:40 +08:00

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SQL

-- https://dev.mysql.com/doc/refman/8.0/en/alter-table-generated-columns.html
ALTER TABLE t1 ADD COLUMN c2 INT GENERATED ALWAYS AS (c1 + 1) STORED;
ALTER TABLE t1 MODIFY COLUMN c2 TINYINT GENERATED ALWAYS AS (c1 + 5) STORED;
ALTER TABLE t1 CHANGE c2 c3 INT GENERATED ALWAYS AS (c1 + 1) STORED;
ALTER TABLE t1 DROP COLUMN c3;
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 MODIFY COLUMN c2 INT GENERATED ALWAYS AS (c1 + 1) STORED;
ALTER TABLE t1 MODIFY COLUMN c2 INT;