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ClickHouse/src/Parsers/ASTOptimizeQuery.cpp

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ISSUES-2688 support on cluster for kill & optimize query
2018-07-20 05:46:48 +00:00
#include <Parsers/ASTOptimizeQuery.h>
Move backQuote() and quoteString() to a separate file, use StringRefs.
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#include <Common/quoteString.h>
use WriteBuffer in formatAST(...)
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#include <IO/Operators.h>
ISSUES-2688 support on cluster for kill & optimize query
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namespace DB
{
void ASTOptimizeQuery::formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << "OPTIMIZE TABLE " << (settings.hilite ? hilite_none : "")
Better
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<< (database ? backQuoteIfNeed(getDatabase()) + "." : "") << backQuoteIfNeed(getTable());
ISSUES-2688 support on cluster for kill & optimize query
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formatOnCluster(settings);
if (partition)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " PARTITION " << (settings.hilite ? hilite_none : "");
partition->formatImpl(settings, state, frame);
}
if (final)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " FINAL" << (settings.hilite ? hilite_none : "");
if (deduplicate)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " DEDUPLICATE" << (settings.hilite ? hilite_none : "");
OPTIMIZE DEDUPLICATE BY columns Extended OPTIMIZE ... DEDUPLICATE syntax to allow explicit (or implicit with asterisk/column transformers) list of columns to check for duplicates on. Following syntax variants are now supported: OPTIMIZE TABLE table DEDUPLICATE; -- the old one OPTIMIZE TABLE table DEDUPLICATE BY *; OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT colX; OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT (colX, colY); OPTIMIZE TABLE table DEDUPLICATE BY col1,col2,col3; OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex'); OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT colX; OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT (colX, colY); Note that * behaves just like in SELECT: MATERIALIZED, and ALIAS columns are not used for expansion. Also, it is an error to specify empty list of columns, or write an expression that results in an empty list of columns, or deduplicate by an ALIAS column. Column transformers other than EXCEPT are not supported.
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Revert "Merge pull request #58274 from ClickHouse/revert-58267" This reverts commit 583b9637c26c7f062c03a1ba96e4fdd4979d50cf, reversing changes made to 224e93762058015cd1b27a90ce0c582c8c9df6aa.
2023-12-28 13:07:59 +00:00
if (cleanup)
settings.ostr << (settings.hilite ? hilite_keyword : "") << " CLEANUP" << (settings.hilite ? hilite_none : "");
OPTIMIZE DEDUPLICATE BY columns Extended OPTIMIZE ... DEDUPLICATE syntax to allow explicit (or implicit with asterisk/column transformers) list of columns to check for duplicates on. Following syntax variants are now supported: OPTIMIZE TABLE table DEDUPLICATE; -- the old one OPTIMIZE TABLE table DEDUPLICATE BY *; OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT colX; OPTIMIZE TABLE table DEDUPLICATE BY * EXCEPT (colX, colY); OPTIMIZE TABLE table DEDUPLICATE BY col1,col2,col3; OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex'); OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT colX; OPTIMIZE TABLE table DEDUPLICATE BY COLUMNS('column-matched-by-regex') EXCEPT (colX, colY); Note that * behaves just like in SELECT: MATERIALIZED, and ALIAS columns are not used for expansion. Also, it is an error to specify empty list of columns, or write an expression that results in an empty list of columns, or deduplicate by an ALIAS column. Column transformers other than EXCEPT are not supported.
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if (deduplicate_by_columns)
{
settings.ostr << (settings.hilite ? hilite_keyword : "") << " BY " << (settings.hilite ? hilite_none : "");
deduplicate_by_columns->formatImpl(settings, state, frame);
}
ISSUES-2688 support on cluster for kill & optimize query
2018-07-20 05:46:48 +00:00
}
Update ASTOptimizeQuery.cpp
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}
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