Re: Upper no convierte las letras minusculas acentuadas

El lun, 04-06-2007 a las 15:22 -0400, Alvaro Herrera escribió:
> Julio Cesar Sánchez González escribió:
> > Hola lista, les platico que me he tomado con el siguiente problema y es
> > que al querer convertir una simple cadena de texto alamcenada en una
> > columna varchar a mayusculas con la funcion upper, me la regresa
> > convertida bien siempre y cuando no contenga algun acento por si no la
> > letra acentuada me la deja tal cual en minusculas; si la letra acentuada
> > es mayuscula entonces la deja sin alterar o sea igual a como estaba
> > antes.
> >
> > Me da la impresion que upper al recorrer caracter por caracter si
> > encuentra una letra acentuada la salta y no la convierte.
> >
> > Mi esquema maneja Latin1 como charset y las pruebas la he realizado con
> > psql con codificación ISO-8859-1 en la terminal.
>
> Que version tienes? Me temo que tu sistema no está bien configurado. Acá
> funciona perfecto -- abro un xterm en modo Latin1 y observa:

Alvaro muchas gracias por responder, el sistema que tengo es un ubuntu
7.04 creo que trabaja sobre UTF8, no estoy seguro el postgresql es:

PostgreSQL 8.2.4 on i486-pc-linux-gnu, compiled by GCC cc (GCC) 4.1.2
(Ubuntu 4.1.2-0ubuntu4).

Mi postgresql.conf:

# -----------------------------
# PostgreSQL configuration file
# -----------------------------
#
# This file consists of lines of the form:
#
# name = value
#
# (The '=' is optional.) White space may be used. Comments are
introduced
# with '#' anywhere on a line. The complete list of option names and
# allowed values can be found in the PostgreSQL documentation. The
# commented-out settings shown in this file represent the default
values.
#
# Please note that re-commenting a setting is NOT sufficient to revert
it
# to the default value, unless you restart the server.
#
# Any option can also be given as a command line switch to the server,
# e.g., 'postgres -c log_connections=on'. Some options can be changed
at
# run-time with the 'SET' SQL command.
#
# This file is read on server startup and when the server receives a
# SIGHUP. If you edit the file on a running system, you have to SIGHUP
the
# server for the changes to take effect, or use "pg_ctl reload". Some
# settings, which are marked below, require a server shutdown and
restart
# to take effect.
#
# Memory units: kB = kilobytes MB = megabytes GB = gigabytes
# Time units: ms = milliseconds s = seconds min = minutes h = hours d
= days

#---------------------------------------------------------------------------
# FILE LOCATIONS
#---------------------------------------------------------------------------

# The default values of these variables are driven from the -D command
line
# switch or PGDATA environment variable, represented here as ConfigDir.

#data_directory = 'ConfigDir' # use data in another directory
# (change requires restart)
hba_file = '/etc/postgresql/8.2/main/pg_hba.conf' # host-based
authentication file
# (change requires restart)
ident_file = '/etc/postgresql/8.2/main/pg_ident.conf' # ident
configuration file
# (change requires restart)

# If external_pid_file is not explicitly set, no extra PID file is
written.
external_pid_file = '/var/run/postgresql/8.2-main.pid' # write
an extra PID file
# (change requires restart)

#---------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#---------------------------------------------------------------------------

# - Connection Settings -

listen_addresses = '*' # what IP address(es) to listen on;
# comma-separated list of
addresses;
# defaults to 'localhost', '*' =
all
# (change requires restart)
port = 5432 # (change requires restart)
max_connections = 100 # (change requires restart)
# Note: increasing max_connections costs ~400 bytes of shared memory
per
# connection slot, plus lock space (see max_locks_per_transaction). You
# might also need to raise shared_buffers to support more connections.
#superuser_reserved_connections = 3 # (change requires restart)
unix_socket_directory = '/var/run/postgresql' # (change
requires restart)
#unix_socket_group = '' # (change requires restart)
#unix_socket_permissions = 0777 # octal
# (change requires restart)
#bonjour_name = '' # defaults to the computer name
# (change requires restart)

# - Security & Authentication -

#authentication_timeout = 1min # 1s-600s
ssl = true # (change requires restart)
#password_encryption = on
#db_user_namespace = off

# Kerberos
#krb_server_keyfile = '' # (change requires restart)
#krb_srvname = 'postgres' # (change requires restart)
#krb_server_hostname = '' # empty string matches any
keytab entry
# (change requires restart)
#krb_caseins_users = off # (change requires restart)

# - TCP Keepalives -
# see 'man 7 tcp' for details

#tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0 # TCP_KEEPCNT;
# 0 selects the system default

#---------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#---------------------------------------------------------------------------

# - Memory -

shared_buffers = 24MB # min 128kB or
max_connections*16kB
# (change requires restart)
#temp_buffers = 8MB # min 800kB
#max_prepared_transactions = 5 # can be 0 or more
# (change requires restart)
# Note: increasing max_prepared_transactions costs ~600 bytes of shared
memory
# per transaction slot, plus lock space (see max_locks_per_transaction).
#work_mem = 1MB # min 64kB
#maintenance_work_mem = 16MB # min 1MB
#max_stack_depth = 2MB # min 100kB

# - Free Space Map -

max_fsm_pages = 153600 # min max_fsm_relations*16, 6 bytes each
# (change requires restart)
#max_fsm_relations = 1000 # min 100, ~70 bytes each
# (change requires restart)

# - Kernel Resource Usage -

#max_files_per_process = 1000 # min 25
# (change requires restart)
#shared_preload_libraries = '' # (change requires restart)

# - Cost-Based Vacuum Delay -

#vacuum_cost_delay = 0 # 0-1000 milliseconds
#vacuum_cost_page_hit = 1 # 0-10000 credits
#vacuum_cost_page_miss = 10 # 0-10000 credits
#vacuum_cost_page_dirty = 20 # 0-10000 credits
#vacuum_cost_limit = 200 # 0-10000 credits

# - Background writer -

#bgwriter_delay = 200ms # 10-10000ms between rounds
#bgwriter_lru_percent = 1.0 # 0-100% of LRU buffers
scanned/round
#bgwriter_lru_maxpages = 5 # 0-1000 buffers max
written/round
#bgwriter_all_percent = 0.333 # 0-100% of all buffers
scanned/round
#bgwriter_all_maxpages = 5 # 0-1000 buffers max
written/round

#---------------------------------------------------------------------------
# WRITE AHEAD LOG
#---------------------------------------------------------------------------

# - Settings -

#fsync = on # turns forced synchronization
on or off
#wal_sync_method = fsync # the default is the first
option
# supported by the operating
system:
# open_datasync
# fdatasync
# fsync
# fsync_writethrough
# open_sync
#full_page_writes = on # recover from partial page
writes
#wal_buffers = 64kB # min 32kB
# (change requires restart)
#commit_delay = 0 # range 0-100000, in
microseconds
#commit_siblings = 5 # range 1-1000

# - Checkpoints -

#checkpoint_segments = 3 # in logfile segments, min 1,
16MB each
#checkpoint_timeout = 5min # range 30s-1h
#checkpoint_warning = 30s # 0 is off

# - Archiving -

#archive_command = '' # command to use to archive a logfile
segment
#archive_timeout = 0 # force a logfile segment switch after
this
# many seconds; 0 is off

#---------------------------------------------------------------------------
# QUERY TUNING
#---------------------------------------------------------------------------

# - Planner Method Configuration -

#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_mergejoin = on
#enable_nestloop = on
#enable_seqscan = on
#enable_sort = on
#enable_tidscan = on

# - Planner Cost Constants -

#seq_page_cost = 1.0 # measured on an arbitrary scale
#random_page_cost = 4.0 # same scale as above
#cpu_tuple_cost = 0.01 # same scale as above
#cpu_index_tuple_cost = 0.005 # same scale as above
#cpu_operator_cost = 0.0025 # same scale as above
#effective_cache_size = 128MB

# - Genetic Query Optimizer -

#geqo = on
#geqo_threshold = 12
#geqo_effort = 5 # range 1-10
#geqo_pool_size = 0 # selects default based on
effort
#geqo_generations = 0 # selects default based on
effort
#geqo_selection_bias = 2.0 # range 1.5-2.0

# - Other Planner Options -

#default_statistics_target = 10 # range 1-1000
#constraint_exclusion = off
#from_collapse_limit = 8
#join_collapse_limit = 8 # 1 disables collapsing of
explicit
# JOINs

#---------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#---------------------------------------------------------------------------

# - Where to Log -

#log_destination = 'stderr' # Valid values are combinations
of
# stderr, syslog and eventlog,
# depending on platform.

# This is used when logging to stderr:
#redirect_stderr = off # Enable capturing of stderr
into log
# files
# (change requires restart)

# These are only used if redirect_stderr is on:
#log_directory = 'pg_log' # Directory where log files are
written
# Can be absolute or relative to
PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # Log file name
pattern.
# Can include strftime() escapes
#log_truncate_on_rotation = off # If on, any existing log file of the
same
# name as the new log file will
be
# truncated rather than appended
to. But
# such truncation only occurs on
# time-driven rotation, not on
restarts
# or size-driven rotation.
Default is
# off, meaning append to
existing files
# in all cases.
#log_rotation_age = 1d # Automatic rotation of logfiles
will
# happen after that time. 0 to
# disable.
#log_rotation_size = 10MB # Automatic rotation of logfiles
will
# happen after that much log
# output. 0 to disable.

# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'

# - When to Log -

#client_min_messages = notice # Values, in order of decreasing
detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# log
# notice
# warning
# error

#log_min_messages = notice # Values, in order of decreasing
detail:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# log
# fatal
# panic

#log_error_verbosity = default # terse, default, or verbose
messages

#log_min_error_statement = error # Values in order of increasing
severity:
# debug5
# debug4
# debug3
# debug2
# debug1
# info
# notice
# warning
# error
# fatal
# panic (effectively off)

#log_min_duration_statement = -1 # -1 is disabled, 0 logs all
statements
# and their durations.

#silent_mode = off # DO NOT USE without syslog or
# redirect_stderr
# (change requires restart)

# - What to Log -

#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
#debug_pretty_print = off
#log_connections = off
#log_disconnections = off
#log_duration = off
log_line_prefix = '%t ' # Special values:
# %u = user name
# %d = database name
# %r = remote host and port
# %h = remote host
# %p = PID
# %t = timestamp (no
milliseconds)
# %m = timestamp with
milliseconds
# %i = command tag
# %c = session id
# %l = session line number
# %s = session start timestamp
# %x = transaction id
# %q = stop here in
non-session
# processes
# %% = '%'
# e.g. '<%u%%%d> '
#log_statement = 'none' # none, ddl, mod, all
#log_hostname = off

#---------------------------------------------------------------------------
# RUNTIME STATISTICS
#---------------------------------------------------------------------------

# - Query/Index Statistics Collector -

#stats_command_string = on
#update_process_title = on

#stats_start_collector = on # needed for block or row stats
# (change requires restart)
#stats_block_level = off
stats_row_level = on
#stats_reset_on_server_start = off # (change requires restart)

# - Statistics Monitoring -

#log_parser_stats = off
#log_planner_stats = off
#log_executor_stats = off
#log_statement_stats = off

#---------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#---------------------------------------------------------------------------

autovacuum = on # enable autovacuum subprocess?
# 'on' requires
stats_start_collector
# and stats_row_level to also be
on
#autovacuum_naptime = 1min # time between autovacuum runs
#autovacuum_vacuum_threshold = 500 # min # of tuple updates before
# vacuum
#autovacuum_analyze_threshold = 250 # min # of tuple updates before
# analyze
#autovacuum_vacuum_scale_factor = 0.2 # fraction of rel size before
# vacuum
#autovacuum_analyze_scale_factor = 0.1 # fraction of rel size before
# analyze
#autovacuum_freeze_max_age = 200000000 # maximum XID age before forced
vacuum
# (change requires restart)
#autovacuum_vacuum_cost_delay = -1 # default vacuum cost delay for
# autovacuum, -1 means use
# vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
# autovacuum, -1 means use
# vacuum_cost_limit

#---------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#---------------------------------------------------------------------------

# - Statement Behavior -

#search_path = '"$user",public' # schema names
#default_tablespace = '' # a tablespace name, '' uses
# the default
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#statement_timeout = 0 # 0 is disabled
#vacuum_freeze_min_age = 100000000

# - Locale and Formatting -

datestyle = 'iso, dmy'
#timezone = unknown # actually, defaults to TZ
# environment setting
#timezone_abbreviations = 'Default' # select the set of available
timezone
# abbreviations. Currently,
there are
# Default
# Australia
# India
# However you can also create
your own
# file in share/timezonesets/.
#extra_float_digits = 0 # min -15, max 2
#client_encoding = sql_ascii # actually, defaults to database
# encoding

# These settings are initialized by initdb -- they might be changed
lc_messages = 'es_MX.UTF-8' # locale for system
error message
# strings
lc_monetary = 'es_MX.UTF-8' # locale for monetary
formatting
lc_numeric = 'es_MX.UTF-8' # locale for number
formatting
lc_time = 'es_MX.UTF-8' # locale for time
formatting

# - Other Defaults -

#explain_pretty_print = on
#dynamic_library_path = '$libdir'
#local_preload_libraries = ''

#---------------------------------------------------------------------------
# LOCK MANAGEMENT
#---------------------------------------------------------------------------

#deadlock_timeout = 1s
#max_locks_per_transaction = 64 # min 10
# (change requires restart)
# Note: each lock table slot uses ~270 bytes of shared memory, and there
are
# max_locks_per_transaction * (max_connections +
max_prepared_transactions)
# lock table slots.

#---------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#---------------------------------------------------------------------------

# - Previous Postgres Versions -

#add_missing_from = off
#array_nulls = on
#backslash_quote = safe_encoding # on, off, or safe_encoding
#default_with_oids = off
#escape_string_warning = on
#standard_conforming_strings = off
#regex_flavor = advanced # advanced, extended, or basic
#sql_inheritance = on

# - Other Platforms & Clients -

#transform_null_equals = off

#---------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#---------------------------------------------------------------------------

#custom_variable_classes = '' # list of custom variable class
names

Mi archivo /etc/environment

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
LANG="es_MX.UTF-8"

>
> alvherre=# set client_encoding to latin1;
> SET
> alvherre=# SHOW client_encoding ;
> client_encoding
> -----------------
> latin1
> (1 fila)
>
> alvherre=# select upper('camagüey');
> upper
> ----------
> CAMAGÜEY
> (1 fila)
>
>
> Y si pruebo en un terminal normal, que es UTF8:
>
> alvherre=# select upper('camagüey');
> upper
> ----------
> CAMAGÜEY
> (1 fila)
>
> alvherre=# show client_encoding ;
> client_encoding
> -----------------
> UTF8
> (1 fila)
>
>