scratchpad:random_magic_spells
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scratchpad:random_magic_spells [2016/05/10 16:17] – Change REGEXP_REPLACE/BTRIM combo with ARRAY_TO_STRING tsbere | scratchpad:random_magic_spells [2022/02/10 13:34] (current) – external edit 127.0.0.1 | ||
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netscape.security.PrivilegeManager.enablePrivilege(" | netscape.security.PrivilegeManager.enablePrivilege(" | ||
</ | </ | ||
+ | |||
+ | ====== Performance ====== | ||
+ | =====Preload Your database into RAM===== | ||
+ | Find your database' | ||
+ | < | ||
+ | psql -U evergreen -h localhost -d postgres -c " | ||
+ | </ | ||
+ | |||
+ | Then, as the root or postgres user, run the following commands | ||
+ | < | ||
+ | cd / | ||
+ | cat * > /dev/null | ||
+ | </ | ||
+ | |||
+ | Replace ${pgversion} with your PostgreSQL version number, ex. 9.5. Replace ${oid} with the number returned by the database query. | ||
====== Utility ====== | ====== Utility ====== | ||
Line 464: | Line 479: | ||
===== Generating a SQL report with natural titles ===== | ===== Generating a SQL report with natural titles ===== | ||
- | While the reporter.materialized_simple_record view is convenient, sometimes those all-lowercase titles are annoying (for example, in shelf list reports that you're preparing for public consumption). In those cases, a little XPATH can go a long way--but you need to correct for the XML array that XPATH() returns, which you can do with a nice little BTRIM() / REGEXP_REPLACE() hack like the following: | + | While the reporter.materialized_simple_record view is convenient, sometimes those all-lowercase titles are annoying (for example, in shelf list reports that you're preparing for public consumption). In those cases, a little XPATH can go a long way--but you need to correct for the XML array that XPATH() returns, which you can do with ARRAY_TO_STRING() like the following: |
<code sql> | <code sql> | ||
Line 539: | Line 554: | ||
; | ; | ||
</ | </ | ||
+ | |||
+ | |||
+ | =====Show statistic usage on reports=== | ||
+ | |||
+ | <code sql> | ||
+ | select thecount.name, | ||
+ | reporter.template rt, | ||
+ | ( | ||
+ | select rtinner.name " | ||
+ | (select naming.name, | ||
+ | reporter.template naming , | ||
+ | reporter.template clones | ||
+ | where | ||
+ | clones.data=naming.data and | ||
+ | naming.folder in(select id from reporter.template_folder where owner= !!!REPLACE ME WITH OWNER ID!!! and shared and share_with=1) and | ||
+ | naming.owner= | ||
+ | group by 1 | ||
+ | ) rtinner | ||
+ | |||
+ | where rr.template = any((' | ||
+ | group by 1 | ||
+ | |||
+ | ) as thecount | ||
+ | where | ||
+ | thecount.name = rt.name and | ||
+ | rt.owner= | ||
+ | rt.folder in(select id from reporter.template_folder where owner= !!!REPLACE ME WITH OWNER ID!!! and shared and share_with=1) | ||
+ | order by 4 desc | ||
+ | |||
+ | </ | ||
+ | |||
+ | You will need to edit that query to look for reports owned by a particular actor.usr.id. Replace " | ||
====== Development ====== | ====== Development ====== | ||
Line 662: | Line 709: | ||
</ | </ | ||
+ | =====Getting a hierarchically-ordered list of org units===== | ||
+ | <code sql> | ||
+ | -- breadth-first (i.e. all first-level org units, then all second-level OUs, etc.) | ||
+ | WITH RECURSIVE orgs AS | ||
+ | ( | ||
+ | SELECT id, shortname, name, parent_ou | ||
+ | FROM actor.org_unit | ||
+ | WHERE parent_ou IS NULL | ||
+ | UNION ALL | ||
+ | SELECT next.id, next.shortname, | ||
+ | FROM actor.org_unit next | ||
+ | JOIN orgs prev ON next.parent_ou = prev.id | ||
+ | ) | ||
+ | SELECT id, shortname, name, parent_ou | ||
+ | FROM orgs; | ||
+ | |||
+ | -- depth-first (" | ||
+ | WITH RECURSIVE orgs AS | ||
+ | ( | ||
+ | SELECT id, shortname, name, parent_ou, array[id] AS path | ||
+ | FROM actor.org_unit | ||
+ | WHERE parent_ou IS NULL | ||
+ | UNION | ||
+ | SELECT next.id, next.shortname, | ||
+ | FROM actor.org_unit next | ||
+ | JOIN orgs prev ON next.parent_ou = prev.id | ||
+ | ) | ||
+ | SELECT id, shortname, name, parent_ou | ||
+ | FROM orgs ORDER BY path; | ||
+ | </ | ||
====== Cstore/ | ====== Cstore/ | ||
Line 770: | Line 847: | ||
Thank you Jeff Godin for this tip! | Thank you Jeff Godin for this tip! | ||
- | ====== Clear cached catalog search results | + | ===== Clear cached catalog search results ===== |
Similar to the spell above, this can be used to clear all cached catalog search results and facets from memcached. This ordinarily isn't needed for production use, but can be useful when testing tweaks to search code or settings. | Similar to the spell above, this can be used to clear all cached catalog search results and facets from memcached. This ordinarily isn't needed for production use, but can be useful when testing tweaks to search code or settings. |
scratchpad/random_magic_spells.1462911465.txt.gz · Last modified: 2022/02/10 13:33 (external edit)