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Projection pushdown #676

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merged 3 commits into from Jun 19, 2019
Merged

Projection pushdown #676

merged 3 commits into from Jun 19, 2019

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martint
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@martint martint commented Apr 25, 2019 •
edited

It supports basic column and row field dereference pushdown.

@cla-bot cla-bot bot added the cla-signed label Apr 25, 2019
kokosing
kokosing reviewed Apr 26, 2019
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As I understand with this you would be able to remove getTableLayout entirely, am I right?

presto-main/src/main/java/io/prestosql/spi/expression/ConnectorExpressionTranslator.java Outdated Show resolved Hide resolved
presto-main/src/main/java/io/prestosql/spi/expression/ConnectorExpressionTranslator.java Show resolved Hide resolved
presto-main/src/main/java/io/prestosql/spi/expression/ConnectorExpressionTranslator.java Show resolved Hide resolved
presto-main/src/main/java/io/prestosql/spi/expression/ConnectorExpressionTranslator.java Outdated Show resolved Hide resolved
presto-main/src/main/java/io/prestosql/spi/expression/ConnectorExpressionTranslator.java Outdated Show resolved Hide resolved
...-main/src/main/java/io/prestosql/sql/planner/iterative/rule/PushProjectionIntoTableScan.java Show resolved Hide resolved
...-main/src/main/java/io/prestosql/sql/planner/iterative/rule/PushProjectionIntoTableScan.java Outdated Show resolved Hide resolved
presto-memory/src/main/java/io/prestosql/plugin/memory/MemoryMetadata.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/connector/ProjectionApplicationResult.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/connector/ProjectionApplicationResult.java
return newProjections;
}

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getNewAssignments?

@kokosing kokosing added WIP and removed WIP labels May 8, 2019
@martint martint mentioned this pull request May 31, 2019
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26 tasks
@martint martint force-pushed the projection-pushdown branch 2 times, most recently from c981e39 to 1b15a21 Compare June 10, 2019 23:51
@martint martint removed the WIP label Jun 11, 2019
@martint martint changed the title [WIP] Projection pushdown Projection pushdown Jun 11, 2019
electrum
electrum reviewed Jun 11, 2019
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Should we have toString() on all the expression classes?

presto-spi/src/main/java/io/prestosql/spi/connector/ProjectionApplicationResult.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/connector/ProjectionApplicationResult.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/expression/ConnectorExpression.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/expression/Constant.java Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/expression/FieldDereference.java Outdated Show resolved Hide resolved
presto-spi/src/main/java/io/prestosql/spi/expression/ConnectorExpression.java Show resolved Hide resolved
@martint martint force-pushed the projection-pushdown branch 7 times, most recently from 40d8eb2 to ac828f9 Compare June 18, 2019 15:41
@martint
Fix default AstVisitor.visitRow implementation
bdec443 
Row is an Expression, so it should delegate to visitExpression
instead of jumping directly to visitNode
@martint
Reuse projection pushdown rules
b9dda2f
@martint
Add support for projection pushdown
5dccec2 
Add a new applyProjection API to ConnectorMetadata. Currently, simple
column references and field dereference expressions are supported.
@Praveen2112 Praveen2112 mentioned this pull request Jun 19, 2019
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16 tasks
@martint martint merged commit 1afbe98 into trinodb:master Jun 19, 2019
@oneonestar oneonestar mentioned this pull request Jul 29, 2019
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@kokosing kokosing kokosing approved these changes

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