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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-04-11 23:06:57 +0000 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-04-11 23:06:57 +0000 |
| commit | addc42c339208d6a7a1d652fbf388e8aea7f80b9 (patch) | |
| tree | e349d31f2ae1006ed4078b811dae8d842e00d969 /src/backend/utils/adt/varchar.c | |
| parent | c3294f1cbfe02293b4a7c6b2e58ca4c09a7e541f (diff) | |
| download | postgresql-addc42c339208d6a7a1d652fbf388e8aea7f80b9.tar.gz postgresql-addc42c339208d6a7a1d652fbf388e8aea7f80b9.zip | |
Create the planner mechanism for optimizing simple MIN and MAX queries
into indexscans on matching indexes. For the moment, it only handles
int4 and text datatypes; next step is to add a column to pg_aggregate
so that all MIN/MAX aggregates can be handled. Per my recent proposal.
Diffstat (limited to 'src/backend/utils/adt/varchar.c')
0 files changed, 0 insertions, 0 deletions