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SPARK-2407: Added Parser of SQL SUBSTR() #1442

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chutium wants to merge 7 commits into from
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SPARK-2407: Added Parser of SQL SUBSTR() #1442

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1de83a7
SPARK-2407: Added Parse of SQL SUBSTR()
chutium Jul 16, 2014
88cb37d
Merge https://github.com/apache/spark
chutium Jul 17, 2014
094f773
Merge https://github.com/apache/spark
chutium Jul 17, 2014
c870172
Merge https://github.com/apache/spark
chutium Jul 17, 2014
06e933b
Merge https://github.com/apache/spark
chutium Jul 17, 2014
9a60ccf
SPARK-2407: Added Parser of SQL SUBSTR() #1442
chutium Jul 17, 2014
b49cc8a
SPARK-2407: Added Parser of SQL SUBSTRING() #1442
chutium Jul 18, 2014
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SPARK-2407: Added Parse of SQL SUBSTR()
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@chutium
chutium committed Jul 16, 2014
commit 1de83a7560f85cd347bca6dde256d551da63a144
8 changes: 7 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/SqlParser.scala
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Expand Up @@ -120,7 +120,7 @@ class SqlParser extends StandardTokenParsers with PackratParsers {
protected val WHERE = Keyword("WHERE")
protected val INTERSECT = Keyword("INTERSECT")
protected val EXCEPT = Keyword("EXCEPT")

protected val SUBSTR = Keyword("SUBSTR")

// Use reflection to find the reserved words defined in this class.
protected val reservedWords =
Expand Down Expand Up @@ -316,6 +316,12 @@ class SqlParser extends StandardTokenParsers with PackratParsers {
IF ~> "(" ~> expression ~ "," ~ expression ~ "," ~ expression <~ ")" ^^ {
case c ~ "," ~ t ~ "," ~ f => If(c,t,f)
} |
SUBSTR ~> "(" ~> expression ~ "," ~ expression <~ ")" ^^ {
case s ~ "," ~ p => Substring(s,p,Literal(Integer.MAX_VALUE))
} |
SUBSTR ~> "(" ~> expression ~ "," ~ expression ~ "," ~ expression <~ ")" ^^ {
case s ~ "," ~ p ~ "," ~ l => Substring(s,p,l)
} |
ident ~ "(" ~ repsep(expression, ",") <~ ")" ^^ {
case udfName ~ _ ~ exprs => UnresolvedFunction(udfName, exprs)
}
Expand Down