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Conditional expression functions.

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This commit is contained in:
zer0sub 2019-06-03 17:38:47 +02:00
parent ca5a30983e
commit dca028295d
7 changed files with 89 additions and 15 deletions
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29
sqlbuilder/func_expression_test.go
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@ -118,23 +118,24 @@ func TestFuncLOG(t *testing.T) {
assertExpressionSerialize(t, LOG(Float(11.2222)), "LOG($1)", float64(11.2222))
}
func TestCase1(t *testing.T) {
query := CASE().
WHEN(table3Col1.EQ(Int(1))).THEN(table3Col1.ADD(Int(1))).
WHEN(table3Col1.EQ(Int(2))).THEN(table3Col1.ADD(Int(2)))
assertExpressionSerialize(t, query, `(CASE WHEN table3.col1 = $1 THEN table3.col1 + $2 WHEN table3.col1 = $3 THEN table3.col1 + $4 END)`,
int64(1), int64(1), int64(2), int64(2))
func TestFuncCOALESCE(t *testing.T) {
assertExpressionSerialize(t, COALESCE(table1ColFloat), "COALESCE(table1.colFloat)")
assertExpressionSerialize(t, COALESCE(Float(11.2222), NULL, String("str")), "COALESCE($1, NULL, $2)", float64(11.2222), "str")
}
func TestCase2(t *testing.T) {
query := CASE(table3Col1).
WHEN(Int(1)).THEN(table3Col1.ADD(Int(1))).
WHEN(Int(2)).THEN(table3Col1.ADD(Int(2))).
ELSE(Int(0))
func TestFuncNULLIF(t *testing.T) {
assertExpressionSerialize(t, NULLIF(table1ColFloat, table2ColInt), "NULLIF(table1.colFloat, table2.colInt)")
assertExpressionSerialize(t, NULLIF(Float(11.2222), NULL), "NULLIF($1, NULL)", float64(11.2222))
}
assertExpressionSerialize(t, query, `(CASE table3.col1 WHEN $1 THEN table3.col1 + $2 WHEN $3 THEN table3.col1 + $4 ELSE $5 END)`,
int64(1), int64(1), int64(2), int64(2), int64(0))
func TestFuncGREATEST(t *testing.T) {
assertExpressionSerialize(t, GREATEST(table1ColFloat), "GREATEST(table1.colFloat)")
assertExpressionSerialize(t, GREATEST(Float(11.2222), NULL, String("str")), "GREATEST($1, NULL, $2)", float64(11.2222), "str")
}
func TestFuncLEAST(t *testing.T) {
assertExpressionSerialize(t, LEAST(table1ColFloat), "LEAST(table1.colFloat)")
assertExpressionSerialize(t, LEAST(Float(11.2222), NULL, String("str")), "LEAST($1, NULL, $2)", float64(11.2222), "str")
}
func TestInterval(t *testing.T) {