Package org.apache.calcite.rel.metadata
Interface BuiltInMetadata.ColumnUniqueness.Handler
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- All Superinterfaces:
MetadataHandler<BuiltInMetadata.ColumnUniqueness>
- Enclosing interface:
- BuiltInMetadata.ColumnUniqueness
public static interface BuiltInMetadata.ColumnUniqueness.Handler extends MetadataHandler<BuiltInMetadata.ColumnUniqueness>
Handler API.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.Boolean
areColumnsUnique(RelNode r, RelMetadataQuery mq, ImmutableBitSet columns, boolean ignoreNulls)
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Methods inherited from interface org.apache.calcite.rel.metadata.MetadataHandler
getDef
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Method Detail
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areColumnsUnique
java.lang.Boolean areColumnsUnique(RelNode r, RelMetadataQuery mq, ImmutableBitSet columns, boolean ignoreNulls)
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