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mysql: export some conditional functions

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COALESCE, NULLIF, GREATEST and LEAST already existed
and were available in the postgres dialect, but not in MySQL.
This commit is contained in:
Karl Blomster 2022-06-03 16:11:24 +02:00
parent 38b6caf41e
commit 792f89a857
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1 changed files with 13 additions and 1 deletions
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14
mysql/functions.go
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@ -261,10 +261,22 @@ func UNIX_TIMESTAMP(str StringExpression) TimestampExpression {
return jet.NewTimestampFunc("UNIX_TIMESTAMP", str) return jet.NewTimestampFunc("UNIX_TIMESTAMP", str)
} }
//----------- Comparison operators ---------------// // --------------- Conditional Expressions Functions -------------//
// EXISTS checks for existence of the rows in subQuery // EXISTS checks for existence of the rows in subQuery
var EXISTS = jet.EXISTS var EXISTS = jet.EXISTS
// CASE create CASE operator with optional list of expressions // CASE create CASE operator with optional list of expressions
var CASE = jet.CASE var CASE = jet.CASE
// COALESCE function returns the first of its arguments that is not null.
var COALESCE = jet.COALESCE
// NULLIF function returns a null value if value1 equals value2; otherwise it returns value1.
var NULLIF = jet.NULLIF
// GREATEST selects the largest value from a list of expressions, or null if any of the expressions is null.
var GREATEST = jet.GREATEST
// LEAST selects the smallest value from a list of expressions, or null if any of the expressions is null.
var LEAST = jet.LEAST