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Introduced new alter algorithm type called NOCOPY & INSTANT for inplace alter operation. NOCOPY - Algorithm refuses any alter operation that would rebuild the clustered index. It is a subset of INPLACE algorithm. INSTANT - Algorithm allow any alter operation that would modify only meta data. It is a subset of NOCOPY algorithm. Introduce new variable called alter_algorithm. The values are DEFAULT(0), COPY(1), INPLACE(2), NOCOPY(3), INSTANT(4) Message to deprecate old_alter_table variable and make it alias for alter_algorithm variable. alter_algorithm variable for slave is always set to default.
79 lines
3.3 KiB
Plaintext
79 lines
3.3 KiB
Plaintext
--- alter_algorithm.result 2018-05-06 23:42:08.022302601 +0530
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+++ alter_algorithm.reject 2018-05-06 23:46:08.482772800 +0530
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@@ -7,35 +7,35 @@
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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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-NOCOPY
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+INSTANT
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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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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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# Make existing column NULLABLE
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ALTER TABLE t1 MODIFY f2 INT;
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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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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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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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# Drop Stored Column
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ALTER TABLE t1 DROP COLUMN f5;
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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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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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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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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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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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# Force the table to rebuild
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ALTER TABLE t1 FORCE;
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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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# Row format changes
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ALTER TABLE t1 ROW_FORMAT=COMPRESSED;
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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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# Engine table
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ALTER TABLE t1 ENGINE=INNODB;
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-ERROR 0A000: ALGORITHM=NOCOPY is not supported for this operation. Try ALGORITHM=INPLACE
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+Got one of the listed errors
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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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@@ -49,23 +49,18 @@
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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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-NOCOPY
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+INSTANT
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ALTER TABLE t1 ADD INDEX idx1(f4);
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-affected rows: 0
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-info: Records: 0 Duplicates: 0 Warnings: 0
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
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ALTER TABLE t1 DROP INDEX idx;
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-affected rows: 0
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-info: Records: 0 Duplicates: 0 Warnings: 0
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: DROP INDEX. Try ALGORITHM=NOCOPY
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ALTER TABLE t1 ADD UNIQUE INDEX u1(f2);
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-affected rows: 0
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-info: Records: 0 Duplicates: 0 Warnings: 0
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
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ALTER TABLE t1 DROP INDEX f4;
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-affected rows: 0
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-info: Records: 0 Duplicates: 0 Warnings: 0
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: DROP INDEX. Try ALGORITHM=NOCOPY
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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: 0
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-info: Records: 0 Duplicates: 0 Warnings: 0
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
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DROP TABLE t2, t1;
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affected rows: 0
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