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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-02-16 00:03:08 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-02-16 00:03:08 +0000 |
| commit | b29f68f611e26377306a9ba2210a589b472c8544 (patch) | |
| tree | 00a057a7682b2a727a9445b753af10dde172a3d4 /src/backend/parser/parse_expr.c | |
| parent | ca71c6619086ac3b6e3787c2826363faeab02ac9 (diff) | |
| download | postgresql-b29f68f611e26377306a9ba2210a589b472c8544.tar.gz postgresql-b29f68f611e26377306a9ba2210a589b472c8544.zip | |
Take OUTER JOIN semantics into account when estimating the size of join
relations. It's not very bright, but at least it now knows that
A LEFT JOIN B must produce at least as many rows as are in A ...
Diffstat (limited to 'src/backend/parser/parse_expr.c')
0 files changed, 0 insertions, 0 deletions