PostgreSQL executes queries using cost-based optimizer, and sometimes fails to choose most optimized execution plan or some types of queries. In such cases, pg_hint_plan helps users to guide the planner to choose the plans they want by putting some nstructions - call them hints - in the comments prefixed to the SQL statement body. No need to rewrite statement tself nor change some GUC parameters elsewhere.
pg_hint_plan for PG10 1.3.1 is released.
1.3.0 has a crash bug. If server receives the extended-protocol message "Describe" after invalidation of corresponding query cache, pg_hint_plan crashes.
Addition to that several related changes of PostgreSQL/pg_stat_statements were took in.
PG10向けの pg_hint_plan 1.3.1 をリリースします。
1.3.0 ではクラッシュする可能性のあるがバグがあります。関係するクエリキャッシュが無効化された状態でサーバが拡張プロトコルの Describe メッセージを受け取るとクラッシュする可能性があります。
この他にPostgreSQL本体と pg_stat_statements に施されたいくつかの修正を取り込んでいます。
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