dtenedor commented on code in PR #36066:
URL: https://github.com/apache/spark/pull/36066#discussion_r845554736
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/numberFormatExpressions.scala:
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@@ -22,48 +22,61 @@ import java.util.Locale
import org.apache.spark.sql.catalyst.analysis.TypeCheckResult
import org.apache.spark.sql.catalyst.expressions.codegen.{CodegenContext,
CodeGenerator, ExprCode}
import org.apache.spark.sql.catalyst.expressions.codegen.Block.BlockHelper
-import org.apache.spark.sql.catalyst.util.NumberFormatter
+import org.apache.spark.sql.catalyst.util.ToNumberParser
import org.apache.spark.sql.types.{DataType, StringType}
import org.apache.spark.unsafe.types.UTF8String
/**
- * A function that converts string to numeric.
+ * A function that converts strings to decimal values, returning an exception
if the input string
+ * fails to match the format string.
*/
@ExpressionDescription(
usage = """
- _FUNC_(strExpr, formatExpr) - Convert `strExpr` to a number based on the
`formatExpr`.
- The format can consist of the following characters:
- '0' or '9': digit position
- '.' or 'D': decimal point (only allowed once)
- ',' or 'G': group (thousands) separator
- '-' or 'S': sign anchored to number (only allowed once)
- '$': value with a leading dollar sign (only allowed once)
+ _FUNC_(expr, fmt) - Convert string 'expr' to a number based on the string
format 'fmt'.
+ Throws an exception if the conversion fails. The format can consist of
the following
+ characters, case insensitive:
+ '0' or '9': Specifies an expected digit between 0 and 9. A 0 to the
left of the decimal
Review Comment:
Done, thanks, this is better.
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