2018-02-21 00:41:46 -05:00
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regular expression screen
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---------------------------------------------
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```
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+------------------------+----+
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source | DCARD | \/ |
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+-----------------------------+
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+-----------------------------+
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new name |First 20 |
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+-----------------------------+
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+-----------------------------+
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function | extract(replace) | \/ |
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+------------------------+----+
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(each block is a regex, all blocks are concatenated into an array and linked to mapped ^alues)
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first 20 characters
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+----------------------------------+
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+----------------------------------------------------------------------------------------------------+
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+ | +-----------------------------+ |
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| | Field Name| Description | \/| expressed as jsonb path "{Description}") |
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+-------+ | +-----------------------------+ |
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| | +-------------------------+ |
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+ |label of return ^alue |f20 | |
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| +-------------------------+ |
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| +-------------------------+ |
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| regular expression |.{1,20} | supply test run ^alues |
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| +-------------------------+ |
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| +-------------------------+ |
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| replace wit | | |
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| +-------------------------+ |
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| +---+ |
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| Map Results|Y/N| |
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| +---+ |
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| +---+ |
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| Find All Matches| g | |
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| +---+ |
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| filter(s) |
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| +-------------------------------------------+ |
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| +----------------+ +----------------+ |
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| |Category | |Restaurantes | |
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| +----------------+ +----------------+ |
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| +----------------+ +----------------+ |
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| |Category | |Services | |
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| +----------------+ +----------------+ |
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+----------------------------------------------------------------------------------------------------+
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```
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2018-02-17 13:57:14 -05:00
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map definition
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----------------------------------------------------------
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{
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"defn": [
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{
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"key": "{Description}",
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"map": "y",
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2018-02-21 00:41:46 -05:00
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"flag": "g",
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2018-02-17 13:57:14 -05:00
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"field": "f20",
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"regex": ".{1,20}",
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"retain": "y"
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}
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],
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"name": "First 20",
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"where": [
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2018-02-21 00:41:46 -05:00
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{"Category":"Restaurantes"},
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{"Category":"Services"}
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2018-02-17 13:57:14 -05:00
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],
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"function": "extract",
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"description": "pull first 20 characters from description for mapping"
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}
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2018-02-26 15:22:38 -05:00
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SQL
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---------------------------------------------
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2018-03-01 01:22:59 -05:00
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select
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x.x
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from
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TPS.srce_map_def_set(
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'DCARD'::text,
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'First 20'::text,
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2018-02-26 15:22:38 -05:00
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$$ {
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"defn": [
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{
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"key": "{Description}",
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"map": "y",
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"flag": "g",
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"field": "f20",
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"regex": ".{1,20}",
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"retain": "y"
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}
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],
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"name": "First 20",
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"where": [
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{"Category":"Restaurantes"},
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{"Category":"Services"}
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],
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"function": "extract",
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"description": "pull first 20 characters from description for mapping"
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} $$::jsonb,
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2018-03-01 01:22:59 -05:00
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1::int
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) x(x)
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2018-02-17 13:57:14 -05:00
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2018-02-21 00:41:46 -05:00
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assign new key/values to the results of the regular expression, and then back to the underlying row it came from
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-----------------------------------------------------------------------------------------------------------------
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2018-02-26 16:50:34 -05:00
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| returned from expression | party | reason | city | provice | |
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| ------------------------------- | ----------------- | ------------- | ------ | ------- | --- |
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| {"f20": "BIG LOTS #00453 STOW"} | Big Lots | Home Supplies | Stow | Ohio | |
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| {"f20": "1794MOTHERHOOD #1794"} | Motherhood | Clothes | | | |
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| {"f20": "3 PALMS HUDSON OH"} | 3 Palms | Restaurantes | Hudson | Ohio | |
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| {"f20": "36241 7-ELEVEN STOW "} | 7-Eleven | Gasoline | Stow | Ohio | |
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| {"f20": "7-ELEVEN 36241 STOW "} | 7-Eleven | Gasoline | Stow | Ohio | |
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| {"f20": "98626 - 200 PUBLIC S"} | Public Sq Parking | Recreation | | | |
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| {"f20": "ACE HARDWARE HUDSON "} | Ace Hardware | Home Maint | Hudson | Ohio | |
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| {"f20": "ACH CAFE AND STARBUC"} | Starbucks | Restaurantes | | | |
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