Github user scwf commented on a diff in the pull request:
https://github.com/apache/spark/pull/5827#discussion_r29515274
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala ---
@@ -132,17 +174,30 @@ class SQLContext(@transient val sparkContext:
SparkContext)
protected[sql] lazy val optimizer: Optimizer = DefaultOptimizer
@transient
- protected[sql] val ddlParser = new DDLParser(sqlParser.parse(_))
+ protected[sql] val ddlParser = new DDLParser((sql: String) => {
getSQLDialect().parse(sql) })
@transient
- protected[sql] val sqlParser = {
- val fallback = new catalyst.SqlParser
- new SparkSQLParser(fallback.parse(_))
+ protected[sql] val sqlParser = new
SparkSQLParser(getSQLDialect().parse(_))
--- End diff --
agree to keep it, and in dialect parser we should not use SparkSQLParser.
Dialect give a fallback(string -> logicalplan) and we call it in sqlParser
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