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rename settings

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This commit is contained in:
sundy-li 2020-12-17 02:17:59 +00:00
parent 24a190a461
commit 84807e9791
5 changed files with 5 additions and 5 deletions
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2
src/Core/Settings.h
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@ -367,7 +367,7 @@ class IColumn;
M(Bool, database_atomic_wait_for_drop_and_detach_synchronously, false, "When executing DROP or DETACH TABLE in Atomic database, wait for table data to be finally dropped or detached.", 0) \
M(Bool, enable_scalar_subquery_optimization, true, "If it is set to true, prevent scalar subqueries from (de)serializing large scalar values and possibly avoid running the same subquery more than once.", 0) \
M(Bool, optimize_trivial_count_query, true, "Process trivial 'SELECT count() FROM table' query from metadata.", 0) \
M(Bool, optimize_alias_column_prediction, true, "If it is set to true, it will respect aliases in WHERE/GROUP BY/ORDER BY, that will help with partition pruning/secondary indexes/optimize_aggregation_in_order/optimize_read_in_order/optimize_trivial_count", 0) \
M(Bool, optimize_respect_aliases, true, "If it is set to true, it will respect aliases in WHERE/GROUP BY/ORDER BY, that will help with partition pruning/secondary indexes/optimize_aggregation_in_order/optimize_read_in_order/optimize_trivial_count", 0) \
M(UInt64, mutations_sync, 0, "Wait for synchronous execution of ALTER TABLE UPDATE/DELETE queries (mutations). 0 - execute asynchronously. 1 - wait current server. 2 - wait all replicas if they exist.", 0) \
M(Bool, optimize_move_functions_out_of_any, true, "Move functions out of aggregate functions 'any', 'anyLast'.", 0) \
M(Bool, optimize_injective_functions_inside_uniq, true, "Delete injective functions of one argument inside uniq*() functions.", 0) \

2
src/Interpreters/ColumnAliasesVisitor.h
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@ -30,7 +30,7 @@ using DataTypePtr = std::shared_ptr<const IDataType>;
// PARTITION BY toYYYYMMDD(timestamp)
// ORDER BY timestamp SETTINGS index_granularity = 1;
/// 1. Rewrite the filters in query when enable optimize_alias_column_prediction
/// 1. Rewrite the filters in query when enable optimize_respect_aliases
/// this could help with `optimize_trivial_count`, Partition Prune in `KeyCondition` and secondary indexes.
/// eg: select max(value) from test_table where day2 = today(), filters will be: ((toDate(timestamp) + 1) + 1) = today() .

2
src/Interpreters/TreeRewriter.cpp
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@ -726,7 +726,7 @@ TreeRewriterResultPtr TreeRewriter::analyzeSelect(
collectJoinedColumns(*result.analyzed_join, *select_query, tables_with_columns, result.aliases);
/// rewrite filters for select query, must goes after getArrayJoinedColumns
if (settings.optimize_alias_column_prediction && result.metadata_snapshot)
if (settings.optimize_respect_aliases && result.metadata_snapshot)
{
replaceAliasColumnsInQuery(query, result.metadata_snapshot->getColumns(), result.getArrayJoinSourceNameSet(), context);
}

2
src/Storages/ReadInOrderOptimizer.cpp
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@ -125,7 +125,7 @@ InputOrderInfoPtr ReadInOrderOptimizer::getInputOrder(const StorageMetadataPtr &
/// currently we only support alias column without any function wrapper
/// ie: `order by aliased_column` can have this optimization, but `order by function(aliased_column)` can not.
/// This suits most cases.
if (context.getSettingsRef().optimize_alias_column_prediction && aliase_columns.contains(required_sort_description[i].column_name))
if (context.getSettingsRef().optimize_respect_aliases && aliase_columns.contains(required_sort_description[i].column_name))
{
auto column_expr = metadata_snapshot->getColumns().get(required_sort_description[i].column_name).default_desc.expression->clone();
replaceAliasColumnsInQuery(column_expr, metadata_snapshot->getColumns(), forbidden_columns, context);

2
tests/queries/0_stateless/01576_alias_column_rewrite.sql
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@ -17,7 +17,7 @@ INSERT INTO test_table(timestamp, value) SELECT toDateTime('2020-01-01 12:00:00'
INSERT INTO test_table(timestamp, value) SELECT toDateTime('2020-01-02 12:00:00'), 1 FROM numbers(10);
INSERT INTO test_table(timestamp, value) SELECT toDateTime('2020-01-03 12:00:00'), 1 FROM numbers(10);
set optimize_alias_column_prediction = 1;
set optimize_respect_aliases = 1;
SELECT 'test-partition-prune';
SELECT COUNT() = 10 FROM test_table WHERE day = '2020-01-01' SETTINGS max_rows_to_read = 10;