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Fix nil may not be distinguished from empty slice in selectCurrentState

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Cnly 2019-08-05 16:51:06 +08:00
parent 8049a55d49
commit 243a991011
1 changed files with 6 additions and 0 deletions
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6
syncapi/storage/filtering.go
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@ -22,6 +22,12 @@ import (
// https://matrix.org/docs/spec/client_server/r0.3.0.html#post-matrix-client-r0-user-userid-filter
// to SQL wildcards that can be used with LIKE()
func filterConvertTypeWildcardToSQL(values []string) []string {
if len(values) == 0 {
// Return nil instead of []string{} so IS NULL can work correctly when
// the return value is passed into SQL queries
return nil
}
ret := make([]string, len(values))
for i := range values {
ret[i] = strings.Replace(values[i], "*", "%", -1)