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[SPARK-30725][SQL] Make legacy SQL configs as internal configs #27448

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[SPARK-30725][SQL] Make legacy SQL configs as internal configs #27448

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9 changes: 7 additions & 2 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1916,13 +1916,15 @@ object SQLConf {
.createWithDefault(Deflater.DEFAULT_COMPRESSION)

val LEGACY_SIZE_OF_NULL = buildConf("spark.sql.legacy.sizeOfNull")
.internal()
.doc("If it is set to true, size of null returns -1. This behavior was inherited from Hive. " +
"The size function returns null for null input if the flag is disabled.")
.booleanConf
.createWithDefault(false)

val LEGACY_REPLACE_DATABRICKS_SPARK_AVRO_ENABLED =
buildConf("spark.sql.legacy.replaceDatabricksSparkAvro.enabled")
.internal()
.doc("If it is set to true, the data source provider com.databricks.spark.avro is mapped " +
"to the built-in but external Avro data source module for backward compatibility.")
.booleanConf
Expand Down Expand Up @@ -2048,10 +2050,11 @@ object SQLConf {

val LEGACY_CAST_DATETIME_TO_STRING =
buildConf("spark.sql.legacy.typeCoercion.datetimeToString.enabled")
.internal()
.doc("If it is set to true, date/timestamp will cast to string in binary comparisons " +
"with String")
.booleanConf
.createWithDefault(false)
.booleanConf
.createWithDefault(false)

val DEFAULT_CATALOG = buildConf("spark.sql.defaultCatalog")
.doc("Name of the default catalog. This will be the current catalog if users have not " +
Expand All @@ -2071,6 +2074,7 @@ object SQLConf {
.createOptional

val LEGACY_LOOSE_UPCAST = buildConf("spark.sql.legacy.looseUpcast")
.internal()
.doc("When true, the upcast will be loose and allows string to atomic types.")
.booleanConf
.createWithDefault(false)
Expand All @@ -2083,6 +2087,7 @@ object SQLConf {

val LEGACY_ARRAY_EXISTS_FOLLOWS_THREE_VALUED_LOGIC =
buildConf("spark.sql.legacy.arrayExistsFollowsThreeValuedLogic")
.internal()
.doc("When true, the ArrayExists will follow the three-valued boolean logic.")
.booleanConf
.createWithDefault(true)
Expand Down