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Improve error checking of CREATE COLLATION options.

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Check for conflicting or redundant options, as we do for most other
commands. Specifying any option more than once is at best redundant,
and quite likely indicates a bug in the user's code.

While at it, improve the error for conflicting locale options by
adding detail text (the same as for CREATE DATABASE).

Bharath Rupireddy, reviewed by Vignesh C. Some additional hacking by
me.

Discussion: https://postgr.es/m/CALj2ACWtL6fTLdyF4R_YkPtf1YEDb6FUoD5DGAki3rpD+sWqiA@mail.gmail.com
This commit is contained in:
Dean Rasheed 2021-07-18 11:08:34 +01:00
parent 8589299e03
commit ba620760c4
3 changed files with 80 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/backend/commands/collationcmds.c
View File

@ -108,15 +108,22 @@ DefineCollation(ParseState *pstate, List *names, List *parameters, bool if_not_e
parser_errposition(pstate, defel->location)));
break;
}
if (*defelp != NULL)
errorConflictingDefElem(defel, pstate);
*defelp = defel;
}
if ((localeEl && (lccollateEl || lcctypeEl))
|| (fromEl && list_length(parameters) != 1))
if (localeEl && (lccollateEl || lcctypeEl))
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("conflicting or redundant options")));
errcode(ERRCODE_SYNTAX_ERROR),
errmsg("conflicting or redundant options"),
errdetail("LOCALE cannot be specified together with LC_COLLATE or LC_CTYPE."));
if (fromEl && list_length(parameters) != 1)
ereport(ERROR,
errcode(ERRCODE_SYNTAX_ERROR),
errmsg("conflicting or redundant options"),
errdetail("FROM cannot be specified together with any other options."));
if (fromEl)
{

47
src/test/regress/expected/collate.out
View File

@ -701,6 +701,53 @@ View definition:
SELECT ss.c1 + 1 AS c1p
FROM ( SELECT 4 AS c1) ss;
-- Check conflicting or redundant options in CREATE COLLATION
-- LC_COLLATE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_COLLATE = "NONSENSE", LC_CTYPE = "POSIX");
ERROR: conflicting or redundant options
LINE 1: ...ATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_COLLATE...
^
-- LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LC_CTYPE = "NONSENSE", LC_COLLATE = "POSIX");
ERROR: conflicting or redundant options
LINE 1: ...REATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LC_CTYPE =...
^
-- PROVIDER
CREATE COLLATION coll_dup_chk (PROVIDER = icu, PROVIDER = NONSENSE, LC_COLLATE = "POSIX", LC_CTYPE = "POSIX");
ERROR: conflicting or redundant options
LINE 1: CREATE COLLATION coll_dup_chk (PROVIDER = icu, PROVIDER = NO...
^
-- LOCALE
CREATE COLLATION case_sensitive (LOCALE = '', LOCALE = "NONSENSE");
ERROR: conflicting or redundant options
LINE 1: CREATE COLLATION case_sensitive (LOCALE = '', LOCALE = "NONS...
^
-- DETERMINISTIC
CREATE COLLATION coll_dup_chk (DETERMINISTIC = TRUE, DETERMINISTIC = NONSENSE, LOCALE = '');
ERROR: conflicting or redundant options
LINE 1: ...ATE COLLATION coll_dup_chk (DETERMINISTIC = TRUE, DETERMINIS...
^
-- VERSION
CREATE COLLATION coll_dup_chk (VERSION = '1', VERSION = "NONSENSE", LOCALE = '');
ERROR: conflicting or redundant options
LINE 1: CREATE COLLATION coll_dup_chk (VERSION = '1', VERSION = "NON...
^
-- LOCALE conflicts with LC_COLLATE and LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_CTYPE = "POSIX", LOCALE = '');
ERROR: conflicting or redundant options
DETAIL: LOCALE cannot be specified together with LC_COLLATE or LC_CTYPE.
-- LOCALE conflicts with LC_COLLATE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LOCALE = '');
ERROR: conflicting or redundant options
DETAIL: LOCALE cannot be specified together with LC_COLLATE or LC_CTYPE.
-- LOCALE conflicts with LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LOCALE = '');
ERROR: conflicting or redundant options
DETAIL: LOCALE cannot be specified together with LC_COLLATE or LC_CTYPE.
-- FROM conflicts with any other option
CREATE COLLATION coll_dup_chk (FROM = "C", VERSION = "1");
ERROR: conflicting or redundant options
DETAIL: FROM cannot be specified together with any other options.
--
-- Clean up. Many of these table names will be re-used if the user is
-- trying to run any platform-specific collation tests later, so we

21
src/test/regress/sql/collate.sql
View File

@ -272,6 +272,27 @@ SELECT c1+1 AS c1p FROM
(SELECT ('4' COLLATE "C")::INT AS c1) ss;
\d+ collate_on_int
-- Check conflicting or redundant options in CREATE COLLATION
-- LC_COLLATE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_COLLATE = "NONSENSE", LC_CTYPE = "POSIX");
-- LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LC_CTYPE = "NONSENSE", LC_COLLATE = "POSIX");
-- PROVIDER
CREATE COLLATION coll_dup_chk (PROVIDER = icu, PROVIDER = NONSENSE, LC_COLLATE = "POSIX", LC_CTYPE = "POSIX");
-- LOCALE
CREATE COLLATION case_sensitive (LOCALE = '', LOCALE = "NONSENSE");
-- DETERMINISTIC
CREATE COLLATION coll_dup_chk (DETERMINISTIC = TRUE, DETERMINISTIC = NONSENSE, LOCALE = '');
-- VERSION
CREATE COLLATION coll_dup_chk (VERSION = '1', VERSION = "NONSENSE", LOCALE = '');
-- LOCALE conflicts with LC_COLLATE and LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_CTYPE = "POSIX", LOCALE = '');
-- LOCALE conflicts with LC_COLLATE
CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LOCALE = '');
-- LOCALE conflicts with LC_CTYPE
CREATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LOCALE = '');
-- FROM conflicts with any other option
CREATE COLLATION coll_dup_chk (FROM = "C", VERSION = "1");
--
-- Clean up. Many of these table names will be re-used if the user is