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1cae1af6f9
* remove old 5.2+ InnoDB support for virtual columns
* enable corresponding parts of the innodb-5.7 sources
* copy corresponding test cases from 5.7
* copy detailed Alter_inplace_info::HA_ALTER_FLAGS flags from 5.7
- and more detailed detection of changes in fill_alter_inplace_info()
* more "innodb compatibility hooks" in sql_class.cc to
- create/destroy/reset a THD (used by background purge threads)
- find a prelocked table by name
- open a table (from a background purge thread)
* different from 5.7:
- new service thread "thd_destructor_proxy" to make sure all THDs are
destroyed at the correct point in time during the server shutdown
- proper opening/closing of tables for vcol evaluations in
+ FK checks (use already opened prelocked tables)
+ purge threads (open the table, MDLock it, add it to tdc, close
when not needed)
- cache open tables in vc_templ
- avoid unnecessary allocations, reuse table->record[0] and table->s->default_values
- not needed in 5.7, because it overcalculates:
+ tell the server to calculate vcols for an on-going inline ADD INDEX
+ calculate vcols for correct error messages
* update other engines (mroonga/tokudb) accordingly
52 lines
1.8 KiB
Text
52 lines
1.8 KiB
Text
CREATE TABLE t_8114 (a int) ENGINE = INNODB;
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ALTER TABLE t_8114 ADD b INT GENERATED ALWAYS AS (a) VIRTUAL;
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SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
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NAME
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test/t_8114
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SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
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NAME POS MTYPE PRTYPE LEN
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a 0 6 1027 4
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b 65537 6 9219 4
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INSERT INTO t_8114 VALUES (9, default);
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INSERT INTO t_8114 VALUES (3, default);
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INSERT INTO t_8114 VALUES (1, default);
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INSERT INTO t_8114 VALUES (5, default);
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SELECT * FROM t_8114;
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a b
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9 9
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3 3
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1 1
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5 5
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DROP TABLE t_8114;
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CREATE TABLE t_8114 (Column_1 CHAR(5) GENERATED ALWAYS AS (PI()+5), Column_2 CHAR(5)) engine=innodb;
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SELECT NAME, FLAG, N_COLS FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
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NAME FLAG N_COLS
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test/t_8114 33 4
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SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
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NAME POS MTYPE PRTYPE LEN
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Column_2 0 2 524542 5
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Column_1 65536 2 532734 5
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INSERT INTO t_8114 VALUES (default, "aa");
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INSERT INTO t_8114 VALUES (default, "bb");
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INSERT INTO t_8114 VALUES (default, "ee");
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INSERT INTO t_8114 VALUES (default, "pp");
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SELECT * FROM t_8114;
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Column_1 Column_2
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8.142 aa
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8.142 bb
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8.142 ee
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8.142 pp
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ALTER TABLE t_8114 DROP Column_1;
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SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114";
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NAME
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test/t_8114
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SELECT NAME, POS, MTYPE, PRTYPE, LEN FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS WHERE TABLE_ID IN (SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE "%t_8114");
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NAME POS MTYPE PRTYPE LEN
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Column_2 0 2 524542 5
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SELECT * FROM t_8114;
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Column_2
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aa
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bb
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ee
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pp
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DROP TABLE t_8114;
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