pgsql-server/src backend/optimizer/path/clause ...

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql-server/src backend/optimizer/path/clause ...
Date: 2002-10-19 02:56:16
Message-ID: 20021019025616.DDFD1476B41@postgresql.org
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CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)postgresql(dot)org 02/10/18 22:56:16

Modified files:
src/backend/optimizer/path: clausesel.c
src/backend/utils/adt: selfuncs.c
src/include/utils: selfuncs.h

Log message:
Fix range-query estimation to not double-exclude NULLs, per gripe from
Ray Ontko 28-June-02. Also, fix prefix_selectivity for NAME lefthand
variables (it was bogusly assuming binary compatibility), and adjust
make_greater_string() to not call pg_mbcliplen() with invalid multibyte
data (this last per bug report that I can't find at the moment, but it
was in July '02).

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