MaxGekk commented on a change in pull request #25963: [SPARK-28137][SQL] Add
Postgresql function to_number.
URL: https://github.com/apache/spark/pull/25963#discussion_r333054485
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala
##########
@@ -840,6 +841,62 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
Literal.create(null, IntegerType), Literal.create(null, IntegerType)),
null)
}
+ test("ToNumber") {
+ // Test '0' and '9'
+ checkEvaluation(ToNumber(Literal("454"), Literal("")), "")
+ checkEvaluation(ToNumber(Literal("454"), Literal("9")), "4")
+ checkEvaluation(ToNumber(Literal("454"), Literal("99")), "45")
+ checkEvaluation(ToNumber(Literal("454"), Literal("999")), "454")
+ checkEvaluation(ToNumber(Literal("054"), Literal("999")), "54")
+ checkEvaluation(ToNumber(Literal("404"), Literal("999")), "404")
+ checkEvaluation(ToNumber(Literal("450"), Literal("999")), "450")
+ checkEvaluation(ToNumber(Literal("0454"), Literal("999")), "45")
+ checkEvaluation(ToNumber(Literal("4540"), Literal("999")), "454")
+ checkEvaluation(ToNumber(Literal("454"), Literal("0")), "4")
+ checkEvaluation(ToNumber(Literal("454"), Literal("00")), "45")
+ checkEvaluation(ToNumber(Literal("454"), Literal("000")), "454")
+ checkEvaluation(ToNumber(Literal("054"), Literal("000")), "54")
+ checkEvaluation(ToNumber(Literal("404"), Literal("000")), "404")
+ checkEvaluation(ToNumber(Literal("450"), Literal("000")), "450")
+ checkEvaluation(ToNumber(Literal("0454"), Literal("000")), "45")
+ checkEvaluation(ToNumber(Literal("4540"), Literal("000")), "454")
+ // Test '.' and 'D'
+ checkEvaluation(ToNumber(Literal("454.0"), Literal("999.9")), "454")
+ checkEvaluation(ToNumber(Literal("454.0"), Literal("000.0")), "454")
+ checkEvaluation(ToNumber(Literal("454.0"), Literal("999D9")), "454")
+ checkEvaluation(ToNumber(Literal("454.0"), Literal("000D0")), "454")
+ checkEvaluation(ToNumber(Literal("454.00"), Literal("000D00")), "454")
+ checkEvaluation(ToNumber(Literal("454.3"), Literal("999.9")), "454.3")
+ checkEvaluation(ToNumber(Literal("454.3"), Literal("000.0")), "454.3")
+ checkEvaluation(ToNumber(Literal("454.3"), Literal("999D9")), "454.3")
+ checkEvaluation(ToNumber(Literal("454.3"), Literal("000D0")), "454.3")
+ // Test ',' and 'G'
+ checkEvaluation(ToNumber(Literal("12,454"), Literal("99,999")), "12454")
+ checkEvaluation(ToNumber(Literal("12,454"), Literal("00,000")), "12454")
+ checkEvaluation(ToNumber(Literal("12,454"), Literal("99G999")), "12454")
+ checkEvaluation(ToNumber(Literal("12,454"), Literal("00G000")), "12454")
+ checkEvaluation(ToNumber(Literal("12,454,367"), Literal("99,999,999")),
"12454367")
+ checkEvaluation(ToNumber(Literal("12,454,367"), Literal("00,000,000")),
"12454367")
+ checkEvaluation(ToNumber(Literal("12,454,367"), Literal("99G999G999")),
"12454367")
+ checkEvaluation(ToNumber(Literal("12,454,367"), Literal("00G000G000")),
"12454367")
+ // Test 'S'
+ checkEvaluation(ToNumber(Literal("454-"), Literal("999S")), "-454")
+ checkEvaluation(ToNumber(Literal("454-"), Literal("000S")), "-454")
+ checkEvaluation(ToNumber(Literal("12,454.8-"), Literal("99G999D9S")),
"-12454.8")
+ checkEvaluation(ToNumber(Literal("1-2,454.8"), Literal("9S9,999D9")),
"-12454.8")
+ checkEvaluation(ToNumber(Literal("00,454.8-"), Literal("99G999.9S")),
"-454.8")
+ // Test 'L'
+ checkEvaluation(ToNumber(Literal("CNY234234.4350"),
Literal("L999999.0000")), "234234.435")
+ checkEvaluation(ToNumber(Literal("RMB34234.4350"),
Literal("L99999.0000")), "34234.435")
+ checkEvaluation(ToNumber(Literal("RY34234.4350"), Literal("L99999.0000")),
"34234.435")
+ checkEvaluation(ToNumber(Literal("R34234.4350"), Literal("L99999.0000")),
"34234.435")
+
+ ToNumber(Literal("454.3.2"), Literal("999D9D9")).checkInputDataTypes()
match {
Review comment:
For example here is a test coverage report:
<img width="532" alt="Screen Shot 2019-10-09 at 17 41 31"
src="https://user-images.githubusercontent.com/1580697/66491818-134bd980-eabc-11e9-9e09-2f7265df6f0a.png";>
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![https://user-images.githubusercontent.com/1580697/66491818-134bd980-eabc-11e9-9e09-2f7265df6f0a.png"](https://user-images.githubusercontent.com/1580697/66491818-134bd980-eabc-11e9-9e09-2f7265df6f0a.png"){kind=link}