Compliant with the original jsonpath spec Convenient additions or elaborations not provided in the original spec: ^ for grabbing the parent of a matching item ~ for grabbing property names of matching items (as array) Type selectors for obtaining: Basic JSON types: @null(), @boolean(), @number(), @string(), @array(), @object() @integer() The compound type @scalar() (which also accepts undefined an
In addition to the standard data formats, COPY supports the following columnar data formats for COPY from Amazon S3: FORMAT [AS] (Optional) Identifies data format keywords. The FORMAT arguments are described following. CSV [ QUOTE [AS] 'quote_character' ] Enables use of CSV format in the input data. To automatically escape delimiters, newline characters, and carriage returns, enclose the field in
Existing udf get_json_object supports limited JsonPath syntax. It would be nice if we have full JsonPath syntax support. We can use Jayway JsonPath 2.0.0 to query json (Apache License, Version 2.0) Reasons: 1. existing get_json_object syntax is limited in comparison to Jayway JsonPath 2. get_json_object uses lots of custom java code which can be replaced with simple JsonPath API calls, e.g.
Amazon Redshift Spectrum external tables are read-only. You can't COPY to an external table. The COPY command appends the input data as additional rows to the table. The maximum size of a single input row from any source is 4 MB. COPY table-name [ column-list ] FROM data_source authorization [ [ FORMAT ] [ AS ] data_format ] [ parameter [ argument ] [, ... ] ] You can perform a COPY operation with
[edit] [comment] [remove] |2007-02-21| e1 # JSONPath - XPath for JSON A frequently emphasized advantage of XML is the availability of plenty tools to analyse, transform and selectively extract data out of XML documents. XPath is one of these powerful tools. It's time to wonder, if there is a need for something like XPath4JSON and what are the problems it can solve. Data may be interactively found
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