Aleksey Plekhanov created CALCITE-4923:
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Summary: Expand "star" for NATURAL JOIN fails if some columns are
filtered out by addToSelectList
Key: CALCITE-4923
URL: https://issues.apache.org/jira/browse/CALCITE-4923
Project: Calcite
Issue Type: Bug
Reporter: Aleksey Plekhanov
If all columns ("*") are requested and some table columns are filtered out by
overridden {{SqlValidatorImpl.addToSelectList()}} method (for example, some
system columns, which we don't want to show to user until it explicitly
requests it) query with NATURAL JOIN and JOIN with USING fail on
{{SqlValidatorImpl.expandStar()}} with error:
{noformat}
java.lang.ArrayIndexOutOfBoundsException: 7
at
com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:60)
at
org.apache.calcite.sql.validate.SqlValidatorImpl$Permute.permute(SqlValidatorImpl.java:7109)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.expandStar(SqlValidatorImpl.java:664)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:426)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4409)
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3652)
{noformat}
Because {{Permute.permute()}} rely on columns count equality in {{selectItems}}
and JOIN row type.
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