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Ignore MODIFY_COLUMN commands without column type when parsing mutation commands

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This commit is contained in:
János Benjamin Antal 2024-08-27 10:31:11 +00:00
parent d0c36c613d
commit 1523df6ec3
3 changed files with 26 additions and 1 deletions
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5
src/Storages/MutationCommands.cpp
View File

@ -115,7 +115,10 @@ std::optional<MutationCommand> MutationCommand::parse(ASTAlterCommand * command,
res.column_name = getIdentifierName(command->column);
return res;
}
else if (parse_alter_commands && command->type == ASTAlterCommand::MODIFY_COLUMN)
/// MODIFY COLUMN x REMOVE MATERIALIZED is a valid alter command, but doesn't have any specified column type, thus no mutation is needed
else if (
parse_alter_commands && command->type == ASTAlterCommand::MODIFY_COLUMN && command->col_decl
&& command->col_decl->as<ASTColumnDeclaration &>().type)
{
MutationCommand res;
res.ast = command->ptr();

8
tests/queries/0_stateless/03230_alter_with_mixed_mutations_and_remove_materialized.reference Normal file
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@ -0,0 +1,8 @@
BEFORE a_r1 x String
BEFORE a_r1 y String MATERIALIZED \'str\'
BEFORE a_r2 x String
BEFORE a_r2 y String MATERIALIZED \'str\'
AFTER a_r1 x String
AFTER a_r1 y String
AFTER a_r2 x String
AFTER a_r2 y String

14
tests/queries/0_stateless/03230_alter_with_mixed_mutations_and_remove_materialized.sql Normal file
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@ -0,0 +1,14 @@
DROP TABLE IF EXISTS a_r1 SYNC;
DROP TABLE IF EXISTS a_r2 SYNC;
CREATE TABLE a_r1 (x String, y String MATERIALIZED 'str') ENGINE = ReplicatedMergeTree('/clickhouse/{database}/a', 'r1') ORDER BY x;
CREATE TABLE a_r2 (x String, y String MATERIALIZED 'str') ENGINE = ReplicatedMergeTree('/clickhouse/{database}/a', 'r2') ORDER BY x;
INSERT INTO a_r1 SELECT toString(number) FROM numbers(100);
SELECT 'BEFORE', table, name, type, default_kind, default_expression FROM system.columns WHERE database = currentDatabase() AND table LIKE 'a\_r%' ORDER BY table, name;
ALTER TABLE a_r1
ADD INDEX IF NOT EXISTS some_index x TYPE set(16) GRANULARITY 1,
MODIFY COLUMN y REMOVE MATERIALIZED
SETTINGS alter_sync = 2, mutations_sync = 2;
SELECT 'AFTER', table, name, type, default_kind, default_expression FROM system.columns WHERE database = currentDatabase() AND table LIKE 'a\_r%' ORDER BY table, name;