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854c219a7f
Patch is about two cases:
1) On some collate changes it's possible to rebuild only secondary indexes
2) For non-indexed columns collate can be changed INSTANTly
Implemented mostly in Field_{string,varstring,blob}::is_equal().
Make this method return how exactly collationa differs.
This information is later used by fill_alter_inplace_info() to pass
correct info to engine.
51 lines
2.8 KiB
Text
51 lines
2.8 KiB
Text
--- instant_alter_charset.result 2019-06-17 14:36:02.311515062 +0300
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+++ instant_alter_charset,redundant.result 2019-06-17 14:50:11.888705725 +0300
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@@ -279,7 +279,6 @@
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alter table boundary_255
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modify a varchar(70) charset utf8mb4,
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algorithm=instant;
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-ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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drop table boundary_255;
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create table t (
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a char(10) collate utf8mb3_general_ci,
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@@ -297,32 +296,21 @@
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repeat('a', 10), repeat('a', 10)
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);
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alter table t modify a char(10) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify b char(70) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify c char(100) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify aa char(10) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify bb char(70) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify cc char(100) collate utf8mb4_general_ci, algorithm=instant;
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-check table t;
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-Table Op Msg_type Msg_text
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-test.t check status OK
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify d char(10) collate utf8mb4_spanish_ci, algorithm=instant;
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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alter table t modify dd char(10) collate utf8mb4_spanish_ci, algorithm=instant;
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-ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
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+ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: Cannot change column type. Try ALGORITHM=COPY
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select * from t;
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a b c aa bb cc d dd
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aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaa aaaaaaaaaa
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