ParseToDate Expression¶

ParseToDate is a spark-sql-Expression-RuntimeReplaceable.md[RuntimeReplaceable] expression that <> the spark-sql-functions-datetime.md#to_date[to_date] function (in logical query plans).

// DEMO to_date(e: Column): Column
// DEMO to_date(e: Column, fmt: String): Column

As a RuntimeReplaceable expression, ParseToDate is replaced by Logical Query Optimizer with the <> expression:

• Cast(left, DateType) for to_date(e: Column): Column function

• Cast(Cast(UnixTimestamp(left, format), TimestampType), DateType) for to_date(e: Column, fmt: String): Column function

// FIXME DEMO Conversion to `Cast(left, DateType)`
// FIXME DEMO Conversion to `Cast(Cast(UnixTimestamp(left, format), TimestampType), DateType)`

=== [[creating-instance]] Creating ParseToDate Instance

ParseToDate takes the following when created:

• [[left]] Left Expression.md[expression]
• [[format]] format Expression.md[expression]
• [[child]] Child Expression.md[expression]