// DEMO to_date(e: Column): Column
// DEMO to_date(e: Column, fmt: String): ColumnParseToDate Expression
ParseToDate is a RuntimeReplaceable expression that represents the to_date function (in logical query plans).
As a RuntimeReplaceable expression, ParseToDate is replaced by Catalyst Optimizer with the child expression:
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Cast(left, DateType)forto_date(e: Column): Columnfunction -
Cast(Cast(UnixTimestamp(left, format), TimestampType), DateType)forto_date(e: Column, fmt: String): Columnfunction
// FIXME DEMO Conversion to `Cast(left, DateType)`
// FIXME DEMO Conversion to `Cast(Cast(UnixTimestamp(left, format), TimestampType), DateType)`Creating ParseToDate Instance
ParseToDate takes the following when created:
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Left expression
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formatexpression -
Child expression