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Tweak FOR UPDATE/SHARE error message wording (again)

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In commit 0ac5ad5134 I changed some error messages from "FOR
UPDATE/SHARE" to a rather long gobbledygook which nobody liked.  Then,
in commit cb9b66d31 I changed them again, but the alternative chosen
there was deemed suboptimal by Peter Eisentraut, who in message
1373937980.20441.8.camel@vanquo.pezone.net proposed an alternative
involving a dynamically-constructed string based on the actual locking
strength specified in the SQL command.  This patch implements that
suggestion.
This commit is contained in:
Alvaro Herrera
2013-07-23 14:03:09 -04:00
parent 026bc46da3
commit 5712eeb2e7
4 changed files with 118 additions and 22 deletions
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src/include/parser/analyze.h
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@@ -36,6 +36,7 @@ extern Query *transformStmt(ParseState *pstate, Node *parseTree);
extern bool analyze_requires_snapshot(Node *parseTree);
extern char *LCS_asString(LockClauseStrength strength);
extern void CheckSelectLocking(Query *qry);
extern void applyLockingClause(Query *qry, Index rtindex,
LockClauseStrength strength, bool noWait, bool pushedDown);