Xiening Dai created CALCITE-3972:
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Summary: Allow RelBuilder to create RelNode with convention and
use it for trait convert
Key: CALCITE-3972
URL: https://issues.apache.org/jira/browse/CALCITE-3972
Project: Calcite
Issue Type: Bug
Reporter: Xiening Dai
1. Provide Convention.transformRelBuilder() to transform an existing RelBuilder
into one with specific convention.
2. RelBuilder provides withRelFactories() method to allow caller swap the
underlying RelFactories and create a new builder.
3. Use the new interface in RelCollationTraitDef for converting into
RelCollation traits
We can avoid ~1/3 of total rule firings in a N way join case with this change.
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