Some fixes related to ClickHouse support (#5229)

This commit is contained in:
Miroslav Stampar
2023-02-03 23:30:05 +01:00
parent b1aaac5ba2
commit d7180d38c4
6 changed files with 16 additions and 16 deletions

View File

@@ -270,7 +270,7 @@ HEURISTIC_NULL_EVAL = {
DBMS.ACCESS: "CVAR(NULL)",
DBMS.MAXDB: "ALPHA(NULL)",
DBMS.MSSQL: "DIFFERENCE(NULL,NULL)",
DBMS.MYSQL: "QUARTER(NULL)",
DBMS.MYSQL: "QUARTER(NULL XOR NULL)",
DBMS.ORACLE: "INSTR2(NULL,NULL)",
DBMS.PGSQL: "QUOTE_IDENT(NULL)",
DBMS.SQLITE: "UNLIKELY(NULL)",
@@ -288,7 +288,7 @@ HEURISTIC_NULL_EVAL = {
DBMS.EXTREMEDB: "NULLIFZERO(hashcode(NULL))",
DBMS.RAIMA: "IF(ROWNUMBER()>0,CONVERT(NULL,TINYINT),NULL))",
DBMS.VIRTUOSO: "__MAX_NOTNULL(NULL)",
DBMS.CLICKHOUSE: "coalesce(NULL)",
DBMS.CLICKHOUSE: "halfMD5(NULL) IS NULL",
}
SQL_STATEMENTS = {