beliefer 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_r329346744
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File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -2258,6 +2258,26 @@ object functions {
FormatNumber(x.expr, lit(d).expr)
}
+ /**
+ * Convert a string to a number based on the pattern.
+ *
+ * The pattern can consist of the following characters:
+ * '9': digit position (can be dropped if insignificant)
+ * '0': digit position (will not be dropped, even if insignificant)
+ * '.': decimal point (only allowed once)
+ * ',': group (thousands) separator
+ * 'S': sign anchored to number (uses locale)
+ * 'L': currency symbol (uses locale)
+ * 'D': decimal point (uses locale)
+ * 'G': group separator (uses locale)
+ *
+ * @group string_funcs
+ * @since 3.0.0
+ */
+ def to_number(x: Column, format: String): Column = withExpr {
Review comment:
OK. I will remove it.
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