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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 Parser of SQL SUBSTRING() #1442
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@chutium
chutium committed Jul 18, 2014
commit b49cc8a5bb73ff25c289a38cbaedfaf7edfefc5b
5 changes: 3 additions & 2 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/SqlParser.scala
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Expand Up @@ -121,6 +121,7 @@ class SqlParser extends StandardTokenParsers with PackratParsers {
protected val INTERSECT = Keyword("INTERSECT")
protected val EXCEPT = Keyword("EXCEPT")
protected val SUBSTR = Keyword("SUBSTR")
protected val SUBSTRING = Keyword("SUBSTRING")

// Use reflection to find the reserved words defined in this class.
protected val reservedWords =
Expand Down Expand Up @@ -316,10 +317,10 @@ class SqlParser extends StandardTokenParsers with PackratParsers {
IF ~> "(" ~> expression ~ "," ~ expression ~ "," ~ expression <~ ")" ^^ {
case c ~ "," ~ t ~ "," ~ f => If(c,t,f)
} |
SUBSTR ~> "(" ~> expression ~ "," ~ expression <~ ")" ^^ {
(SUBSTR | SUBSTRING) ~> "(" ~> expression ~ "," ~ expression <~ ")" ^^ {
case s ~ "," ~ p => Substring(s,p,Literal(Integer.MAX_VALUE))
} |
SUBSTR ~> "(" ~> expression ~ "," ~ expression ~ "," ~ expression <~ ")" ^^ {
(SUBSTR | SUBSTRING) ~> "(" ~> expression ~ "," ~ expression ~ "," ~ expression <~ ")" ^^ {
case s ~ "," ~ p ~ "," ~ l => Substring(s,p,l)
} |
ident ~ "(" ~ repsep(expression, ",") <~ ")" ^^ {
Expand Down
6 changes: 6 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
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Expand Up @@ -43,6 +43,12 @@ class SQLQuerySuite extends QueryTest {
checkAnswer(
sql("SELECT substr(tableName, 3) FROM tableName"),
"st")
checkAnswer(
sql("SELECT substring(tableName, 1, 2) FROM tableName"),
"te")
checkAnswer(
sql("SELECT substring(tableName, 3) FROM tableName"),
"st")
}

test("index into array") {
Expand Down