Re-introduce the yylex filter function formerly used to support UNION
Tom Lane <tgl@sss.pgh.pa.us>
Re-introduce the yylex filter function formerly used to support UNION JOIN, which I removed in a recent fit of over-optimism that we wouldn't have any future use for it. Now it's needed to support disambiguating WITH CHECK OPTION from WITH TIME ZONE. As proof of concept, add stub grammar productions for WITH CHECK OPTION.
Files
| Path | Change | +/− |
|---|---|---|
| src/backend/parser/gram.y | modified | +52 −5 |
| src/backend/parser/Makefile | modified | +2 −2 |
| src/backend/parser/parser.c | modified | +73 −1 |
| src/include/parser/gramparse.h | modified | +4 −1 |