General Bug Report: Libpq function PQfnumber does not handle case-insensitive comparisons correctly

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Bahman Rafatjoo
Your email address : bahman(at)metrixsystems(dot)com

Category : runtime: front-end: C
Severity : non-critical

Summary: Libpq function PQfnumber does not handle case-insensitive comparisons correctly

System Configuration
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Operating System : Linux 2.0.34 ELF (Slackware)

PostgreSQL version : 6.4.2

Compiler used : gcc version egcs-2.90.29 980515 (egcs-1.0.3 release)

Hardware:
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Pentium 32MB RAM
Linux brian 2.0.34 #5 Mon Jan 18 10:28:12 CET 1999 i586 unknown

Versions of other tools:
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GNU Make version 3.76.1

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Problem Description:
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The libpq function PQfnumber does not handle case-insensitive comparisons
correctly. The psql monitor converts all table and field names
to lower case. If the PQfnumber function is called with a mixed
case name, it will always return -1.

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Test Case:
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See below

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Solution:
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In the file src/interfaces/libpq/fe-exec.c edit the code for the function
PQfnumber. In version 1.69.2.1 of this file (which is what I have), the line
to be modified is line 1525. It reads:

if (strcmp(field_name, res->attDescs[i].name) == 0)

and it should be:

if (strcmp(field_case, res->attDescs[i].name) == 0)

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