HyukjinKwon commented on a change in pull request #30554:
URL: https://github.com/apache/spark/pull/30554#discussion_r533805836
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File path:
sql/core/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveSessionCatalog.scala
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@@ -636,9 +636,11 @@ class ResolveSessionCatalog(
(storageFormat, DDLUtils.HIVE_PROVIDER)
} else {
// If neither USING nor STORED AS/ROW FORMAT is specified, we create
native data source
- // tables if it's a CTAS and `conf.convertCTAS` is true.
- // TODO: create native data source table by default for non-CTAS.
- if (ctas && conf.convertCTAS) {
+ // tables if:
+ // 1. `LEGACY_CREATE_HIVE_TABLE_BY_DEFAULT` is false, or
+ // 2. It's a CTAS and `conf.convertCTAS` is true.
+ val createHiveTableByDefault =
conf.getConf(SQLConf.LEGACY_CREATE_HIVE_TABLE_BY_DEFAULT)
Review comment:
I would even think about printing a warning that creating a Hive table
by default is deprecated, and this configuration will be disabled by default in
the future because Spark should create a Spark table.
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