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Diffstat (limited to 'databases/postgresql90-datatypes')
| -rw-r--r-- | databases/postgresql90-datatypes/DESCR | 49 |
1 files changed, 15 insertions, 34 deletions
diff --git a/databases/postgresql90-datatypes/DESCR b/databases/postgresql90-datatypes/DESCR index 0fd1fb2d6cd..1e4f644bc64 100644 --- a/databases/postgresql90-datatypes/DESCR +++ b/databases/postgresql90-datatypes/DESCR @@ -1,43 +1,24 @@ -This package provides the following PostgreSQL modules: - - citext - - hstore - - intarray - - isn - - ltree - - lo - - uuid-ossp - - unaccent +This package provides the following PostgreSQL modules: citext, hstore, +intarray, isn, ltree, lo, uuid-ossp, and unaccent. The "citext" module provides +a case-insensitive character string type, citext. -The "citext" module provides a case-insensitive character string type, -citext. Essentially, it internally calls lower when comparing values. -Otherwise, it behaves almost exactly like text. +The "hstore" module implements the "hstore" data type for storing sets of +key/value pairs within a single PostgreSQL value. -The "hstore" module implements the "hstore" data type for storing sets -of key/value pairs within a single PostgreSQL value. This can be useful -in various scenarios, such as rows with many attributes that are rarely -examined, or semi-structured data. Keys and values are simply text strings. +The "intarray" module provides a number of useful functions and operators for +manipulating one-dimensional arrays of integers. -The "intarray" module provides a number of useful functions and operators -for manipulating one-dimensional arrays of integers. There is also support -for indexed searches using some of the operators. +The "isn" module provides data types for the following international product +numbering standards: EAN13, UPC, ISBN (books), ISMN (music), and ISSN (serials). -The "isn" module provides data types for the following international -product numbering standards: EAN13, UPC, ISBN (books), ISMN (music), -and ISSN (serials). Numbers are validated on input, and correctly -hyphenated on output. +The "ltree" module implements a data type ltree for representing labels of data +stored in a hierarchical tree-like structure. -The "ltree" module implements a data type ltree for representing -labels of data stored in a hierarchical tree-like structure. -Extensive facilities for searching through label trees are provided. - -The "lo" module provides support for managing Large Objects (also called -LOs or BLOBs). This includes a data type "lo" and a trigger "lo_manage." +The "lo" module provides support for managing Large Objects (also called LOs or +BLOBs). This includes a data type "lo" and a trigger "lo_manage." The "uuid-ossp" module provides functions to generate universally unique -identifiers (UUIDs) using one of several standard algorithms. There are -also functions to produce certain special UUID constants. +identifiers (UUIDs) using one of several standard algorithms. "unaccent" is a text search dictionary that removes accents (diacritic signs) -from lexemes. It's a filtering dictionary, which means its output is always -passed to the next dictionary (if any), unlike the normal behavior of -dictionaries. This allows accent-insensitive processing for full text search. +from lexemes. |