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90b292ce31
Allow combination of non-instant, non-rebuilding operations with changes of table options that do not require a rebuild. For example, DROP INDEX or ADD INDEX can be performed with ALGORITHM=NOCOPY together with changing such table options. Changing the table options alone would be allowed with ALGORITHM=INSTANT. INNOBASE_ALTER_NOCREATE: A new set of flags, for operations that are refused for ALGORITHM=INSTANT and do not involve creating index trees. Move ALTER_RENAME_INDEX to the proper place (INNOBASE_ALTER_INSTANT). innobase_need_rebuild(): Do not require a rebuild if INNOBASE_ALTER_NOREBUILD operations are combined with ALTER_OPTIONS. ha_innobase::prepare_inplace_alter_table(), ha_innobase::inplace_alter_table(): Use the fast path if ALTER_OPTIONS is combined with INNOBASE_ALTER_NOCREATE. In this case, the actual changes would be deferred to ha_innobase::commit_inplace_alter_table().
81 lines
2.5 KiB
Plaintext
81 lines
2.5 KiB
Plaintext
CREATE TABLE t1(f1 INT NOT NULL,
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f2 INT NOT NULL,
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f3 INT NULL,
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f4 INT as (f2) STORED,
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f5 INT as (f3) STORED,
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PRIMARY KEY(f1))ROW_FORMAT=COMPRESSED, ENGINE=INNODB;
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INSERT INTO t1(f1, f2, f3) VALUES(1, 1, 1);
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SELECT @@alter_algorithm;
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@@alter_algorithm
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COPY
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# All the following cases needs table rebuild
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# Add and Drop primary key
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ALTER TABLE t1 ADD COLUMN col1 INT NOT NULL,DROP PRIMARY KEY,ADD PRIMARY KEY(col1);
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Make existing column NULLABLE
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ALTER TABLE t1 MODIFY f2 INT;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Make existing column NON-NULLABLE
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ALTER TABLE t1 MODIFY f3 INT NOT NULL;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Drop Stored Column
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ALTER TABLE t1 DROP COLUMN f5;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Add base non-generated column as a last column in the compressed table
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ALTER TABLE t1 ADD COLUMN f6 INT NOT NULL;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Add base non-generated column but not in the last position
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ALTER TABLE t1 ADD COLUMN f7 INT NOT NULL after f3;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Force the table to rebuild
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ALTER TABLE t1 FORCE;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Row format changes
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ALTER TABLE t1 ROW_FORMAT=COMPRESSED;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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# Engine table
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ALTER TABLE t1 ENGINE=INNODB;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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DROP TABLE t1;
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affected rows: 0
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CREATE TABLE t1(f1 INT PRIMARY KEY, f2 INT NOT NULL,
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f3 INT AS (f2 * f2) VIRTUAL,
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f4 INT NOT NULL UNIQUE,
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f5 INT NOT NULL,
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INDEX`idx`(f2))ENGINE=INNODB;
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CREATE TABLE t2(f1 INT NOT NULL, f2 INT NOT NULL,
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INDEX(f1),
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FOREIGN KEY `fidx` (f1) REFERENCES t1(f1))ENGINE=INNODB;
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INSERT INTO t1(f1, f2, f4, f5) VALUES(1, 2, 3, 4);
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SELECT @@alter_algorithm;
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@@alter_algorithm
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COPY
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ALTER TABLE t1 ADD INDEX idx1(f4), page_compressed=1;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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ALTER TABLE t1 DROP INDEX idx, page_compression_level=5;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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ALTER TABLE t1 ADD UNIQUE INDEX u1(f2);
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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ALTER TABLE t1 DROP INDEX f4, page_compression_level=9;
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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SET foreign_key_checks = 0;
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affected rows: 0
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ALTER TABLE t1 ADD FOREIGN KEY(f5) REFERENCES t2(f1);
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affected rows: 1
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info: Records: 1 Duplicates: 0 Warnings: 0
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DROP TABLE t2, t1;
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affected rows: 0
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