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psql \dX: list extended statistics objects

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The new command lists extended statistics objects. All past releases
with extended statistics are supported.

This is a simplified version of commit 891a1d0bca, which had to be
reverted due to not considering pg_statistic_ext_data is not accessible
by regular users. Fields requiring access to this catalog were removed.
It's possible to add them, but it'll require changes to core.

Author: Tatsuro Yamada
Reviewed-by: Julien Rouhaud, Alvaro Herrera, Tomas Vondra, Noriyoshi Shinoda
Discussion: https://postgr.es/m/c027a541-5856-75a5-0868-341301e1624b%40nttcom.co.jp_1
This commit is contained in:
Tomas Vondra
2021-01-20 22:56:06 +01:00
parent 9d23c15a03
commit ad600bba04
8 changed files with 267 additions and 1 deletions
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src/bin/psql/help.c
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@ -267,6 +267,7 @@ slashUsage(unsigned short int pager)
fprintf(output, _(" \\du[S+] [PATTERN] list roles\n"));
fprintf(output, _(" \\dv[S+] [PATTERN] list views\n"));
fprintf(output, _(" \\dx[+] [PATTERN] list extensions\n"));
fprintf(output, _(" \\dX [PATTERN] list extended statistics\n"));
fprintf(output, _(" \\dy [PATTERN] list event triggers\n"));
fprintf(output, _(" \\l[+] [PATTERN] list databases\n"));
fprintf(output, _(" \\sf[+] FUNCNAME show a function's definition\n"));