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fix(kingbase): use # as LIKE escape for MySQL-compat schema query

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zipg 2026-08-08 11:34:05 +08:00 committed by GitHub
parent fc1f89ddb6
commit c4289e6f21
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2 changed files with 4 additions and 4 deletions
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6
agents/drivers/kingbase-go/kingbase_metadata.go
View File

@ -21,9 +21,9 @@ const (
kingbaseListDatabasesPostgresSQL = "SELECT datname FROM pg_catalog.pg_database WHERE datallowconn AND LOWER(datname) NOT IN ('template0', 'template1') ORDER BY datname"
)
// Escape '_' so only Kingbase internal SYS_/XLOG_ prefixes are hidden; names
// such as SYSTEMS and SYSLOG may be user-created schemas in MySQL mode.
const kingbaseMySQLCompatListSchemasSQL = `SELECT schema_name FROM information_schema.schemata WHERE UPPER(schema_name) <> 'INFORMATION_SCHEMA' AND UPPER(schema_name) NOT LIKE 'SYS\_%' ESCAPE '\' AND UPPER(schema_name) NOT LIKE 'XLOG\_%' ESCAPE '\' ORDER BY schema_name`
// Escape '_' so only Kingbase internal SYS_/XLOG_ prefixes are hidden; use a
// non-backslash escape because MySQL mode treats backslash as a string escape.
const kingbaseMySQLCompatListSchemasSQL = `SELECT schema_name FROM information_schema.schemata WHERE UPPER(schema_name) <> 'INFORMATION_SCHEMA' AND UPPER(schema_name) NOT LIKE 'SYS#_%' ESCAPE '#' AND UPPER(schema_name) NOT LIKE 'XLOG#_%' ESCAPE '#' ORDER BY schema_name`
var kingbaseDataTypes = []string{
"bigint", "bigserial", "bit", "bit varying", "boolean", "bytea", "char", "character",

2
agents/drivers/kingbase-go/main_test.go
View File

@ -962,7 +962,7 @@ func TestKingbaseCatalogFunctionsFollowMetadataMode(t *testing.T) {
func TestMySQLCompatSchemaQueryKeepsUserSchemasWithSystemLikeNames(t *testing.T) {
query := kingbaseMySQLCompatListSchemasSQL
for _, prefix := range []string{"SYS", "XLOG"} {
expected := "NOT LIKE '" + prefix + `\_%' ESCAPE '\'`
expected := "NOT LIKE '" + prefix + `#_%' ESCAPE '#'`
if !strings.Contains(query, expected) {
t.Fatalf("schema query must only hide the internal %s_ prefix: %s", prefix, query)
}