doc: Fix some whitespace issues
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@ -149,7 +149,7 @@
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<xref linkend="sql-explain"/> can be used to see whether
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<acronym>JIT</acronym> is used or not. As an example, here is a query that
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is not using <acronym>JIT</acronym>:
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<programlisting>
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<screen>
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=# EXPLAIN ANALYZE SELECT SUM(relpages) FROM pg_class;
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┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
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│ QUERY PLAN │
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@ -160,12 +160,12 @@
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│ Execution Time: 0.365 ms │
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└─────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
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(4 rows)
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</programlisting>
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</screen>
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Given the cost of the plan, it is entirely reasonable that no
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<acronym>JIT</acronym> was used, the cost of <acronym>JIT</acronym> would
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have been bigger than the savings. Adjusting the cost limits will lead to
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<acronym>JIT</acronym> use:
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<programlisting>
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<screen>
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=# SET jit_above_cost = 10;
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SET
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=# EXPLAIN ANALYZE SELECT SUM(relpages) FROM pg_class;
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@ -185,7 +185,7 @@ SET
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│ Emission Time: 5.048 ms │
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│ Execution Time: 7.416 ms │
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└─────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
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</programlisting>
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</screen>
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As visible here, <acronym>JIT</acronym> was used, but inlining and
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expensive optimization were not. If <xref
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linkend="guc-jit-optimize-above-cost"/>, <xref
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@ -1011,35 +1011,31 @@ websearch_to_tsquery(<optional> <replaceable class="parameter">config</replaceab
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<para>
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Examples:
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<screen>
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select websearch_to_tsquery('english', 'The fat rats');
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SELECT websearch_to_tsquery('english', 'The fat rats');
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websearch_to_tsquery
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-----------------
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----------------------
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'fat' & 'rat'
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(1 row)
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</screen>
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<screen>
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select websearch_to_tsquery('english', '"supernovae stars" -crab');
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SELECT websearch_to_tsquery('english', '"supernovae stars" -crab');
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websearch_to_tsquery
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----------------------------------
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'supernova' <-> 'star' & !'crab'
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(1 row)
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</screen>
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<screen>
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select websearch_to_tsquery('english', '"sad cat" or "fat rat"');
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SELECT websearch_to_tsquery('english', '"sad cat" or "fat rat"');
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websearch_to_tsquery
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-----------------------------------
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'sad' <-> 'cat' | 'fat' <-> 'rat'
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(1 row)
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</screen>
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<screen>
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select websearch_to_tsquery('english', 'signal -"segmentation fault"');
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SELECT websearch_to_tsquery('english', 'signal -"segmentation fault"');
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websearch_to_tsquery
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---------------------------------------
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'signal' & !( 'segment' <-> 'fault' )
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(1 row)
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</screen>
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<screen>
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select websearch_to_tsquery('english', '""" )( dummy \\ query <->');
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SELECT websearch_to_tsquery('english', '""" )( dummy \\ query <->');
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websearch_to_tsquery
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----------------------
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'dummi' & 'queri'
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