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@ -669,7 +669,8 @@ distinct values on several columns (Tomas Vondra, David Rowley) |
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New commands are <command><link linkend="SQL-CREATESTATISTICS">CREATE</></>, |
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<command><link linkend="SQL-ALTERSTATISTICS">ALTER</></>, and |
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<command><link linkend="SQL-DROPSTATISTICS">DROP STATISTICS</></>. This is helpful in |
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estimating query memory usage and ... HOW IS RATIO USED? |
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estimating query memory usage and when combining the statistics from |
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individual columns. |
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</para> |
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</listitem> |
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@ -683,17 +684,6 @@ Improve planner matching of boolean indexes (Tom Lane) |
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</para> |
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</listitem> |
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<listitem> |
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<!-- |
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Author: Robert Haas <rhaas@postgresql.org> |
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2017-03-16 [b30fb56b0] postgres_fdw: Push down <literal>FULL JOIN</>s with restriction clau |
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--> |
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<para> |
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Improve optimization of <literal>FULL JOIN</> queries containing subqueries in the |
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<literal>FROM</> clause (Etsuro Fujita) |
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</para> |
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</listitem> |
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<listitem> |
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<!-- |
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Author: Tom Lane <tgl@sss.pgh.pa.us> |
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@ -830,7 +820,7 @@ Author: Stephen Frost <sfrost@snowman.net> |
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--> |
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<para> |
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Allow explicit control over <command><link linkend="SQL-EXPLAIN">EXPLAIN</></>'s display of planning and execution |
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time (Stephen Frost) |
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time (Ashutosh Bapat) |
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</para> |
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<para> |
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@ -2694,6 +2684,17 @@ optimization. |
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</para> |
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</listitem> |
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<listitem> |
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<!-- |
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Author: Robert Haas <rhaas@postgresql.org> |
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2017-03-16 [b30fb56b0] postgres_fdw: Push down <literal>FULL JOIN</>s with restriction clau |
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--> |
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<para> |
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Allow push down of <literal>FULL JOIN</> queries containing subqueries in the |
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<literal>FROM</> clause to foreign servers (Etsuro Fujita) |
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</para> |
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</listitem> |
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<listitem> |
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<!-- |
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Author: Heikki Linnakangas <heikki.linnakangas@iki.fi> |
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