danny0405 commented on a change in pull request #1157: [CALCITE-2969] Improve
design of join-like relational expressions
URL: https://github.com/apache/calcite/pull/1157#discussion_r285324373
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File path:
core/src/main/java/org/apache/calcite/rel/metadata/RelMdExpressionLineage.java
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@@ -258,11 +262,17 @@ protected RelMdExpressionLineage() {}
}
// Right input references might need to be updated if there are
// table names clashes with left input
+ final RelDataType fullRowType = SqlValidatorUtil.createJoinType(
+ rexBuilder.getTypeFactory(),
+ rel.getLeft().getRowType(),
+ rel.getRight().getRowType(),
+ null,
+ ImmutableList.of());
Review comment:
Because `SEMI`(and `ANTI`) row type does not contains fields from right
input, use a full row type here will allow us to inferrer lineage for
expressions that reference the right fields.
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