https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 https://pfspipe.ipmu.jp/jira/browse/INSTRM-2039 Instrument control development <p>One common set of queries is the family of <tt>select xxx from cobra_match where mcs_frame_id == yyy</tt> . I think we should add an index on <tt>mcs_frame_id</tt>. FWIW <tt>cobra_match</tt> has 36M rows and takes 4G of space. Only 2.8s now, but will clearly grow. </p> <p>And I'll bet that a bit of thought will find a few more of these.</p> INSTRM-2039

Add some indexes for common cobra/mcs/ag/target joins

Task Normal Done Done Kiyoto Yabe cloomis near-term Mon, 24 Jul 2023 07:52:24 +0000 Fri, 6 Oct 2023 17:35:55 +0000 Fri, 6 Oct 2023 17:35:55 +0000 spt_operational_database 0 4 <p>Now that the run is done, can this be added? Should be obvious pretty fast whether it helps.</p> <p>I think I'm done.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> Table <span class="code-quote">"<span class="code-keyword">public</span>.cobra_match"</span> Column | Type | Collation | Nullable | Default -----------------+---------+-----------+----------+--------- pfs_visit_id | integer | | not <span class="code-keyword">null</span> | iteration | integer | | not <span class="code-keyword">null</span> | cobra_id | integer | | not <span class="code-keyword">null</span> | mcs_frame_id | integer | | | spot_id | integer | | | pfi_center_x_mm | real | | | pfi_center_y_mm | real | | | flags | integer | | | Indexes: <span class="code-quote">"cobra_match_pkey"</span> PRIMARY KEY, btree (pfs_visit_id, iteration, cobra_id) <span class="code-quote">"cobra_match_mcs_frame_id_idx"</span> btree (mcs_frame_id) <span class="code-quote">"cobra_match_pfs_visit_id_iteration_cobra_id_key"</span> UNIQUE CONSTRAINT, btree (pfs_visit_id, iteration, cobra_id) </pre> </div></div> <p>(For recording) Chi-Hung will test how much the query process will be faster before modifying the software.</p> <p>The queries are now fast: a few 10s of ms. And the EXPLAIN shows a simple index search. Shouldn't require any software changes.</p> <p>Now queries are actually fast, so we close this ticket.</p> Development Rank 0|zzsz76:i Sprint Eng13Oct