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Enable conversion of join to filter by default (#12868)

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Rohan Garg 2022-08-13 20:37:43 +05:30 committed by GitHub
parent af700bba0c
commit 5394838030
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4 changed files with 3 additions and 4 deletions
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1
docs/querying/query-context.md
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@ -93,6 +93,7 @@ Some query types offer context parameters specific to that query type.
|enableJoinFilterPushDown | `true` | Controls whether a join query will attempt filter push down, which reduces the number of rows that have to be compared in a join operation.|
|enableJoinFilterRewrite | `true` | Controls whether filter clauses that reference non-base table columns will be rewritten into filters on base table columns.|
|enableJoinFilterRewriteValueColumnFilters | `false` | Controls whether Druid rewrites non-base table filters on non-key columns in the non-base table. Requires a scan of the non-base table.|
|enableRewriteJoinToFilter | `true` | Controls whether a join can be pushed partial or fully to the base table as a filter at runtime.|
|joinFilterRewriteMaxSize | `10000` | The maximum size of the correlated value set used for filter rewrites. Set this limit to prevent excessive memory use.|
### GroupBy

2
processing/src/main/java/org/apache/druid/query/QueryContexts.java
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@ -95,7 +95,7 @@ public class QueryContexts
public static final boolean DEFAULT_ENABLE_JOIN_FILTER_PUSH_DOWN = true;
public static final boolean DEFAULT_ENABLE_JOIN_FILTER_REWRITE = true;
public static final boolean DEFAULT_ENABLE_JOIN_FILTER_REWRITE_VALUE_COLUMN_FILTERS = false;
public static final boolean DEFAULT_ENABLE_REWRITE_JOIN_TO_FILTER = false;
public static final boolean DEFAULT_ENABLE_REWRITE_JOIN_TO_FILTER = true;
public static final long DEFAULT_ENABLE_JOIN_FILTER_REWRITE_MAX_SIZE = 10000;
public static final boolean DEFAULT_ENABLE_SQL_JOIN_LEFT_SCAN_DIRECT = false;
public static final boolean DEFAULT_USE_FILTER_CNF = false;

3
sql/src/test/java/org/apache/druid/sql/calcite/CalciteQueryTest.java
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@ -3843,9 +3843,6 @@ public class CalciteQueryTest extends BaseCalciteQueryTest
@Test
public void testGroupingWithNullInFilter() throws Exception
{
// HashJoinSegmentStorageAdapter is not vectorizable
cannotVectorize();
testQuery(
"SELECT COUNT(*) FROM foo WHERE dim1 IN (NULL)",
ImmutableList.of(

1
website/.spelling
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@ -1652,6 +1652,7 @@ enableParallelMerge
enableJoinLeftTableScanDirect
enableJoinFilterPushDown
enableJoinFilterRewrite
enableRewriteJoinToFilter
enableJoinFilterRewriteValueColumnFilters
floatSum
joinFilterRewriteMaxSize