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Overview
Comment:Another minor change to the EQP documentation.
Timelines: family | ancestors | descendants | both | trunk
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SHA1: 1aff2310137e184b125386e9c1b44309ca100dd3
User & Date: drh 2010-11-18 01:11:35
Context
2010-11-18
16:21
Update the documentation to be explicit that a parent key must not be a rowid. check-in: d1edb27943 user: drh tags: trunk
01:11
Another minor change to the EQP documentation. check-in: 1aff231013 user: drh tags: trunk
2010-11-17
22:30
Tweak to the text of the EQP documentation. check-in: 5f2171a4cb user: drh tags: trunk
Changes
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Changes to pages/eqp.in.

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  following information:

<ul>
  <li> The name of the table data is read from.
  <li> Whether or not an index or [automatic indexing|automatic index] is used.
  <li> Whether or not the [covering index] optimization applies.
  <li> Which terms of the WHERE clause are used for indexing.
  <li> The estimated number of rows that SQLite expects the scan to visit.
</ul>)^

<p>
  For example, the following EXPLAIN QUERY PLAN command operates on a SELECT
  statement that is implemented by performing a full-table scan on table t1:
^(<codeblock>
    sqlite&gt; EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1; 







|







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  following information:

<ul>
  <li> The name of the table data is read from.
  <li> Whether or not an index or [automatic indexing|automatic index] is used.
  <li> Whether or not the [covering index] optimization applies.
  <li> Which terms of the WHERE clause are used for indexing.
  <li> The estimated number of rows that SQLite will visit.
</ul>)^

<p>
  For example, the following EXPLAIN QUERY PLAN command operates on a SELECT
  statement that is implemented by performing a full-table scan on table t1:
^(<codeblock>
    sqlite&gt; EXPLAIN QUERY PLAN SELECT a, b FROM t1 WHERE a=1;