| From: | Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk> |
|---|---|
| To: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
| Cc: | Alexander Farber <alexander(dot)farber(at)gmail(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: SELECT UNION into a text[] |
| Date: | 2018-10-10 08:29:14 |
| Message-ID: | 87sh1e8aw4.fsf@news-spur.riddles.org.uk |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
>>>>> "David" == David G Johnston <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
>> SELECT ARRAY_AGG(hashed)
>> FROM words_nouns
>> WHERE added > TO_TIMESTAMP(1539100913)
>> UNION
>> SELECT ARRAY_AGG(hashed)
>> FROM words_verbs
>> WHERE added > TO_TIMESTAMP(1539100913);
David> SELECT array_agg(words) FROM (
David> SELECT hashed FROM words_nouns
David> UNION ALL
David> SELECT hashed FROM words_verbs
David> ) AS src
Or even better,
SELECT ARRAY(SELECT hashed FROM words_nouns
UNION
SELECT hashed FROM words_verbs);
--
Andrew (irc:RhodiumToad)
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