| commit | 90e52884edf75b86c2832e6094d30eb2987d23a2 | |
| author | Tom Lane <tgl@sss.pgh.pa.us> | |
| Mon, 9 May 2022 18:15:37 +0000 (9 14:15 -0400) | ||
| committer | Tom Lane <tgl@sss.pgh.pa.us> | |
| Mon, 9 May 2022 18:15:37 +0000 (9 14:15 -0400) | ||
| tree | fe10f29163ecb5699e47977b2e2aba6d9a9cece9 | treesnapshot (tar.gz zip) |
| parent | 5045c795301d6332660053f0b4194adac03a6db5 | commitdiff |
Fix core dump in transformValuesClause when there are no columns.
The parser code that transformed VALUES from row-oriented to
column-oriented lists failed if there were zero columns.
You can't write that straightforwardly (though probably you
should be able to), but the case can be reached by expanding
a "tab.*" reference to a zero-column table.
Per bug #17477 from Wang Ke. Back-patch to all supported branches.
Discussion: https://postgr.es/m/17477-0af3c6ac6b0a6ae0@postgresql.org
The parser code that transformed VALUES from row-oriented to
column-oriented lists failed if there were zero columns.
You can't write that straightforwardly (though probably you
should be able to), but the case can be reached by expanding
a "tab.*" reference to a zero-column table.
Per bug #17477 from Wang Ke. Back-patch to all supported branches.
Discussion: https://postgr.es/m/17477-0af3c6ac6b0a6ae0@postgresql.org
| src/backend/parser/analyze.c | diffblobblamehistory | |
| src/test/regress/expected/select.out | diffblobblamehistory | |
| src/test/regress/sql/select.sql | diffblobblamehistory |