Hi,
You dont have the book field in the asv_bible table indexed. Use this to
index it....
CREATE INDEX myindexname ON asv_bible(book);
(the primary key fields are ok because PostgreSQL creates a unique index to
implement the PRIMARY KEY constraint).
Hope that helps :)
--
Shane
> I have a PostgreSQL database that is storing The Bible. It has 31,103
> records in it and I have a PHP page executing this query:
> SELECT
> books.book_name, bible.chapter, bible.verse, bible.versetext
> FROM asv_bible bible, book_bible books WHERE bible.book = books.id ORDER BY
> random() LIMIT 1
>
> The database schema is:
>
> /* --------------------------------------------------------
> Sequences
> -------------------------------------------------------- */
> CREATE SEQUENCE "book_bible_seq" start 1 increment 1 maxvalue 2147483647
> minvalue 1 cache 1;
>
> /* --------------------------------------------------------
> Table structure for table "asv_bible"
> -------------------------------------------------------- */
> CREATE TABLE "asv_bible" (
> "id" int8 NOT NULL,
> "book" int8,
> "chapter" int8,
> "verse" int8,
> "versetext" text,
> CONSTRAINT "asv_bible_pkey" PRIMARY KEY ("id")
> );
>
>
>
> /* --------------------------------------------------------
> Table structure for table "book_bible"
> -------------------------------------------------------- */
> CREATE TABLE "book_bible" (
> "id" int4 DEFAULT nextval('book_bible_seq'::text) NOT NULL,
> "book_name" varchar(20),
> CONSTRAINT "book_bible_pkey" PRIMARY KEY ("id")
> );
>
> Right now it takes 9 seconds to return the results. I was wondering if
> anyone could offer any help with lowering the time it takes to run?
>
> Or if this is the normal runtime for a database of this size, I'd just like
> confirmation.
>
> Thanks,
> Kevin
>
>
> _________________________________________________________________
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