Re: matching a timestamp field - Mailing list pgsql-sql

Hello

2012/9/20 BACHELART PIERRE (CIS/SCC) <pierre.bachelart@belgacom.be>:
> Hello,
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> Why is my sql below accepted in 8.1.19 and refused in 8.4.9 ???
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> Is there something I have missed in the doc ?
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you cannot use ~ operator for timestamp, it is nonsense - use '=' instead

see 8.3 release notes

http://www.postgresql.org/docs/9.1/static/release-8-3.html

A dump/restore using pg_dump is required for those wishing to migrate
data from any previous release.

Observe the following incompatibilities:
E.51.2.1. General
   Non-character data types are no longer automatically cast to TEXT
(Peter, Tom)

Regards

Pavel Stehule
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> Welcome to psql 8.1.19, the PostgreSQL interactive terminal.
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> Type:  \copyright for distribution terms
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>        \h for help with SQL commands
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>        \? for help with psql commands
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>        \g or terminate with semicolon to execute query
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>        \q to quit
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> ansroc=# select * from s12hwdb where record ~'2012-09-20' limit 5;
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>    host   | exchange |   rit   |  board   | var  | lceid | pceid | mnem  |
> eq | rtyp | rv |  cetype  |       record        | type | zone
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>
----------+----------+---------+----------+------+-------+-------+-------+----+------+----+----------+---------------------+------+------
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> and5032t | and5032t | 01a0301 | 21122994 | ebjb | 0000  | 000c  | con3a | e
> | ef03 | b1 | plce#xfx | 2012-09-20 11:50:02 | H    | a1
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> and5032t | and5032t | 01a0307 | 21406298 | aaca | 0000  | 000c  | mmca  | e
> | ef03 | b1 | plce#xfx | 2012-09-20 11:50:02 | H    | a1
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> and5032t | and5032t | 01a0309 | 21406298 | aaca | 0000  | 000c  | mmca  | s
> | ef03 | b1 | plce#xfx | 2012-09-20 11:50:02 | H    | a1
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> and5032t | and5032t | 01a0311 | 21407930 | aaaa | 0000  | 000c  | mmcb  | e
> | ef03 | b1 | plce#xfx | 2012-09-20 11:50:02 | H    | a1
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> and5032t | and5032t | 01a0313 | 21407932 | abca | 0000  | 000c  | mcud  | e
> | ef03 | b1 | plce#xfx | 2012-09-20 11:50:02 | H    | a1
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> (5 rows)
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> ansroc=# \q
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> psql (8.4.9)
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> Type "help" for help.
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> ansroc=# select * from s12hwdb where record ~'2012-09-20' limit 5;
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> ERROR:  operator does not exist: timestamp without time zone ~ unknown
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> LINE 1: select * from s12hwdb where record ~'2012-09-20' limit 5;
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>                                            ^
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> HINT:  No operator matches the given name and argument type(s). You might
> need to add explicit type casts.
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> ansroc=#
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> Pierre.
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> +32 471 68 12 23
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