[SPARK-52219][SQL] Schema level collation support for tables #50937
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...rc/main/scala/org/apache/spark/sql/catalyst/analysis/ApplyDefaultCollationToStringType.scala
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@cloud-fan can you please review? |
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What changes were proposed in this pull request?
Added support for setting and altering a default collation at the schema level.
Tables that do not specify their own collation will now automatically inherit the schema-level default.
CREATE SCHEMA schema1 DEFAULT COLLATION UTF8_LCASE; CREATE TABLE t1 (c1 STRING);The default collation for table
t1will beUTF8_LCASE. and c1 data type will beSTRING COLLATE UTF8_LCASE.Following PRs will add support for Views, UDFs.
Why are the changes needed?
New feature.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Tests added to
DefaultCollationTestSuite.scala.Was this patch authored or co-authored using generative AI tooling?
No.