diff options
Diffstat (limited to 'src/backend/parser/parse_expr.c')
| -rw-r--r-- | src/backend/parser/parse_expr.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c index 64356436ef..0b3632735b 100644 --- a/src/backend/parser/parse_expr.c +++ b/src/backend/parser/parse_expr.c @@ -64,6 +64,8 @@ static Node *transformArrayExpr(ParseState *pstate, A_ArrayExpr *a, static Node *transformRowExpr(ParseState *pstate, RowExpr *r, bool allowDefault); static Node *transformCoalesceExpr(ParseState *pstate, CoalesceExpr *c); static Node *transformMinMaxExpr(ParseState *pstate, MinMaxExpr *m); +static Node *transformSQLValueFunction(ParseState *pstate, + SQLValueFunction *svf); static Node *transformXmlExpr(ParseState *pstate, XmlExpr *x); static Node *transformXmlSerialize(ParseState *pstate, XmlSerialize *xs); static Node *transformBooleanTest(ParseState *pstate, BooleanTest *b); @@ -250,6 +252,11 @@ transformExprRecurse(ParseState *pstate, Node *expr) result = transformMinMaxExpr(pstate, (MinMaxExpr *) expr); break; + case T_SQLValueFunction: + result = transformSQLValueFunction(pstate, + (SQLValueFunction *) expr); + break; + case T_XmlExpr: result = transformXmlExpr(pstate, (XmlExpr *) expr); break; @@ -2221,6 +2228,59 @@ transformMinMaxExpr(ParseState *pstate, MinMaxExpr *m) } static Node * +transformSQLValueFunction(ParseState *pstate, SQLValueFunction *svf) +{ + /* + * All we need to do is insert the correct result type and (where needed) + * validate the typmod, so we just modify the node in-place. + */ + switch (svf->op) + { + case SVFOP_CURRENT_DATE: + svf->type = DATEOID; + break; + case SVFOP_CURRENT_TIME: + svf->type = TIMETZOID; + break; + case SVFOP_CURRENT_TIME_N: + svf->type = TIMETZOID; + svf->typmod = anytime_typmod_check(true, svf->typmod); + break; + case SVFOP_CURRENT_TIMESTAMP: + svf->type = TIMESTAMPTZOID; + break; + case SVFOP_CURRENT_TIMESTAMP_N: + svf->type = TIMESTAMPTZOID; + svf->typmod = anytimestamp_typmod_check(true, svf->typmod); + break; + case SVFOP_LOCALTIME: + svf->type = TIMEOID; + break; + case SVFOP_LOCALTIME_N: + svf->type = TIMEOID; + svf->typmod = anytime_typmod_check(false, svf->typmod); + break; + case SVFOP_LOCALTIMESTAMP: + svf->type = TIMESTAMPOID; + break; + case SVFOP_LOCALTIMESTAMP_N: + svf->type = TIMESTAMPOID; + svf->typmod = anytimestamp_typmod_check(false, svf->typmod); + break; + case SVFOP_CURRENT_ROLE: + case SVFOP_CURRENT_USER: + case SVFOP_USER: + case SVFOP_SESSION_USER: + case SVFOP_CURRENT_CATALOG: + case SVFOP_CURRENT_SCHEMA: + svf->type = NAMEOID; + break; + } + + return (Node *) svf; +} + +static Node * transformXmlExpr(ParseState *pstate, XmlExpr *x) { XmlExpr *newx; |