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Support for pattern matching operators (LIKE, SIMILAR TO).

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This commit is contained in:
zer0sub 2019-06-02 13:43:43 +02:00
parent aef698bdbc
commit 938c01b9b2
3 changed files with 45 additions and 0 deletions
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21
sqlbuilder/string_expression.go
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@ -14,6 +14,11 @@ type StringExpression interface {
GT_EQ(rhs StringExpression) BoolExpression
CONCAT(rhs expression) StringExpression
LIKE(pattern StringExpression) BoolExpression
NOT_LIKE(pattern StringExpression) BoolExpression
SIMILAR_TO(pattern StringExpression) BoolExpression
NOT_SIMILAR_TO(pattern StringExpression) BoolExpression
}
type stringInterfaceImpl struct {
@ -56,6 +61,22 @@ func (s *stringInterfaceImpl) CONCAT(rhs expression) StringExpression {
return newBinaryStringExpression(s.parent, rhs, "||")
}
func (s *stringInterfaceImpl) LIKE(pattern StringExpression) BoolExpression {
return newBinaryBoolExpression(s.parent, pattern, "LIKE")
}
func (s *stringInterfaceImpl) NOT_LIKE(pattern StringExpression) BoolExpression {
return newBinaryBoolExpression(s.parent, pattern, "NOT LIKE")
}
func (s *stringInterfaceImpl) SIMILAR_TO(pattern StringExpression) BoolExpression {
return newBinaryBoolExpression(s.parent, pattern, "SIMILAR TO")
}
func (s *stringInterfaceImpl) NOT_SIMILAR_TO(pattern StringExpression) BoolExpression {
return newBinaryBoolExpression(s.parent, pattern, "NOT SIMILAR TO")
}
//---------------------------------------------------//
type binaryStringExpression struct {
expressionInterfaceImpl