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autho_explain: Add GUC to log query parameters

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auto_explain.log_parameter_max_length is a new GUC part of the
extension, similar to the corresponding core setting, that controls the
inclusion of query parameters in the logged explain output.

More tests are added to check the behavior of this new parameter: when
parameters logged in full (the default of -1), when disabled (value of
0) and when partially truncated (value different than the two others).

Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87ee09mohb.fsf@wibble.ilmari.org
This commit is contained in:
Michael Paquier
2022-07-06 09:55:30 +09:00
parent 08385ed261
commit d4bfe41281
5 changed files with 105 additions and 0 deletions
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src/include/commands/explain.h
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@@ -99,6 +99,7 @@ extern void ExplainPrintTriggers(ExplainState *es, QueryDesc *queryDesc);
extern void ExplainPrintJITSummary(ExplainState *es, QueryDesc *queryDesc);
extern void ExplainQueryText(ExplainState *es, QueryDesc *queryDesc);
extern void ExplainQueryParameters(ExplainState *es, ParamListInfo params, int maxlen);
extern void ExplainBeginOutput(ExplainState *es);
extern void ExplainEndOutput(ExplainState *es);