e9d63c048f
This release adds many new features which enhance PostgreSQL's flexibility, scalability and performance for many different types of database users, including improvements to JSON support, replication and index performance.
38 lines
1.9 KiB
Text
38 lines
1.9 KiB
Text
This package provides the following PostgreSQL modules: btree_gist,
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citext, hstore, intarray, isn, ltree, lo, uuid-ossp, unaccent.
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The "btree_gist" module provides GIST operator classes for scalar data types.
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The "citext" module provides a case-insensitive character string type,
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citext. Essentially, it internally calls lower when comparing values.
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Otherwise, it behaves almost exactly like text.
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The "hstore" module implements the "hstore" data type for storing sets
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of key/value pairs within a single PostgreSQL value. This can be useful
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in various scenarios, such as rows with many attributes that are rarely
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examined, or semi-structured data. Keys and values are simply text strings.
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The "intarray" module provides a number of useful functions and operators
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for manipulating one-dimensional arrays of integers. There is also support
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for indexed searches using some of the operators.
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The "isn" module provides data types for the following international
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product numbering standards: EAN13, UPC, ISBN (books), ISMN (music),
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and ISSN (serials). Numbers are validated on input, and correctly
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hyphenated on output.
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The "ltree" module implements a data type ltree for representing
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labels of data stored in a hierarchical tree-like structure.
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Extensive facilities for searching through label trees are provided.
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The "lo" module provides support for managing Large Objects (also called
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LOs or BLOBs). This includes a data type "lo" and a trigger "lo_manage."
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The "uuid-ossp" module provides functions to generate universally unique
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identifiers (UUIDs) using one of several standard algorithms. There are
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also functions to produce certain special UUID constants.
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"unaccent" is a text search dictionary that removes accents (diacritic signs)
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from lexemes. It's a filtering dictionary, which means its output is always
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passed to the next dictionary (if any), unlike the normal behavior of
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dictionaries. This allows accent-insensitive processing for full text search.
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