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1. pgestraier - search Hyper Estraier indexes from PostgreSQL |
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This package is essentially PostgreSQL C function which calls Hyper Estraier |
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API and returns results in user defined format. |
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2. Why is it written? |
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Aside from providing single API to query your RDBMS and full text index |
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(using any language that has PostgreSQL client libraries), real power is |
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hidden in ability to join results from full text index and structured data |
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in RDBMS. |
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3. How to install |
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Installation should be simple. However, you will have to have following |
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software already installed before you try this function: |
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* PostgreSQL (tested with version 7.4.8) with development libraries |
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* Hyper Estraier (tested with versions 0.3.9 and 0.3.10) |
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To run tests you will also need: |
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* working perl installation |
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* perl modules DBI, DBD::Pg, Test::More |
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* trivia.list.gz from Internet Movie Database in data/ directory |
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* database "test" with permissions for current user |
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If you have all that, you should be able to type |
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make |
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and see sample results. You will be asked your password once (via sudo) to |
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install pgest.so shared library in system-wide location so that PostgreSQL |
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could access it. |
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Next, you will have to create test index. You have two options: |
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3.1. Create index using estcmd |
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This will create temporary files on disk and index them using estcmd gather |
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cd data |
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make index |
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cd .. |
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3.2. Create index using Hyper Estraier perl bindings |
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For this, you will have to install perl bindings from |
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http://tokuhirom.dnsalias.org/~tokuhirom/archive/hyper_estraier_wrappers-0.0.6.tar.gz |
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If you installed bindings as documented in README file, you can issue |
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following commands to create index about three times faster than using |
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estcmd: |
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cd data |
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make perl |
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cd .. |
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To run tests (which require that you have estcmd in your $PATH) issue |
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make test |
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See also included file test.sql for more examples of usage. |
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4. Who wrote this? |
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Hyper Estraier is written by Mikio Hirabayashi. |
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PostgreSQL is written by hackers calling themselves PostgreSQL Global |
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Development Group. |
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This small C function is written by Dobrica Pavlinusic, dpavlin@rot13.org. |
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