@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-mssql-examples
 sortorder: 500031000
 toc: False
 sidebartitle: sqlalchemy.dialects mssql
-meta: Python example code for the mssql function from the sqlalchemy.dialects module of the SQLAlchemy project.
+meta: Python example code for the mssql callable from the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
-mssql is a function within the sqlalchemy.dialects module of the SQLAlchemy project.
+mssql is a callable within the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
 ## Example 1 from marshmallow-sqlalchemy
 
@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-mysql-examples
 sortorder: 500031001
 toc: False
 sidebartitle: sqlalchemy.dialects mysql
-meta: Python example code for the mysql function from the sqlalchemy.dialects module of the SQLAlchemy project.
+meta: Python example code for the mysql callable from the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
-mysql is a function within the sqlalchemy.dialects module of the SQLAlchemy project.
+mysql is a callable within the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
 ## Example 1 from marshmallow-sqlalchemy
 
@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-oracle-examples
 sortorder: 500031002
 toc: False
 sidebartitle: sqlalchemy.dialects oracle
-meta: Python example code for the oracle function from the sqlalchemy.dialects module of the SQLAlchemy project.
+meta: Python example code for the oracle callable from the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
-oracle is a function within the sqlalchemy.dialects module of the SQLAlchemy project.
+oracle is a callable within the sqlalchemy.dialects module of the SQLAlchemy project.
 
 
 ## Example 1 from sqlalchemy-utils
 
@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-postgresql-array-examples
 sortorder: 500031005
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql ARRAY
-meta: Python example code for the ARRAY class from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+meta: Python example code for the ARRAY constant from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
-ARRAY is a class within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+ARRAY is a constant within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
 ## Example 1 from sqlalchemy-utils
 
@@ -1,7 +1,7 @@
 title: sqlalchemy.dialects.postgresql.base PGTypeCompiler code examples
 category: page
 slug: sqlalchemy-dialects-postgresql-base-pgtypecompiler-examples
-sortorder: 500031012
+sortorder: 500031013
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql.base PGTypeCompiler
 meta: Python example code for the PGTypeCompiler class from the sqlalchemy.dialects.postgresql.base module of the SQLAlchemy project.
 
@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-postgresql-bigint-examples
 sortorder: 500031006
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql BIGINT
-meta: Python example code for the BIGINT class from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+meta: Python example code for the BIGINT constant from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
-BIGINT is a class within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+BIGINT is a constant within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
 ## Example 1 from alembic
 
@@ -4,10 +4,10 @@ slug: sqlalchemy-dialects-postgresql-bit-examples
 sortorder: 500031007
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql BIT
-meta: Python example code for the BIT class from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+meta: Python example code for the BIT constant from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
-BIT is a class within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+BIT is a constant within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
 ## Example 1 from sqlalchemy-utils
 
@@ -0,0 +1,61 @@
+title: sqlalchemy.dialects.postgresql DOUBLE_PRECISION code examples
+category: page
+slug: sqlalchemy-dialects-postgresql-double-precision-examples
+sortorder: 500031008
+toc: False
+sidebartitle: sqlalchemy.dialects.postgresql DOUBLE_PRECISION
+meta: Python example code for the DOUBLE_PRECISION constant from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+
+
+DOUBLE_PRECISION is a constant within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+
+
+## Example 1 from GeoAlchemy2
+[GeoAlchemy2](https://github.com/geoalchemy/geoalchemy2)
+([project documentation](https://geoalchemy-2.readthedocs.io/en/latest/)
+and
+[PyPI package information](https://pypi.org/project/GeoAlchemy2/))
+extends [SQLAlchemy](/sqlalchemy.html) with new data types for working
+with geospatial databases, particularly [PostGIS](http://postgis.net/),
+which is a spatial database extender for [PostgreSQL](/postgresql.html).
+The project is provided as open source under the
+[MIT license](https://github.com/geoalchemy/geoalchemy2/blob/master/COPYING.rst).
+
+[**GeoAlchemy2 / geoalchemy2 / comparator.py**](https://github.com/geoalchemy/geoalchemy2/blob/master/geoalchemy2/./comparator.py)
+
+```python
+# comparator.py
+
+from sqlalchemy import types as sqltypes
+from sqlalchemy.types import UserDefinedType
+~~from sqlalchemy.dialects.postgresql import DOUBLE_PRECISION
+from sqlalchemy.sql import operators
+try:
+    from sqlalchemy.sql.functions import _FunctionGenerator
+except ImportError:  # SQLA < 0.9  # pragma: no cover
+    from sqlalchemy.sql.expression import _FunctionGenerator
+
+
+INTERSECTS = operators.custom_op('&&')
+OVERLAPS_OR_TO_LEFT = operators.custom_op('&<')
+OVERLAPS_OR_TO_RIGHT = operators.custom_op('&>')
+OVERLAPS_OR_BELOW = operators.custom_op('&<|')
+TO_LEFT = operators.custom_op('<<')
+BELOW = operators.custom_op('<<|')
+TO_RIGHT = operators.custom_op('>>')
+CONTAINED = operators.custom_op('@')
+OVERLAPS_OR_ABOVE = operators.custom_op('|&>')
+ABOVE = operators.custom_op('|>>')
+CONTAINS = operators.custom_op('-')
+SAME = operators.custom_op('-=')
+DISTANCE_CENTROID = operators.custom_op('<->')
+DISTANCE_BOX = operators.custom_op('<#>')
+
+
+class BaseComparator(UserDefinedType.Comparator):
+
+
+## ... source file continues with no further DOUBLE_PRECISION examples...
+
+```
+
@@ -1,7 +1,7 @@
 title: sqlalchemy.dialects.postgresql ExcludeConstraint code examples
 category: page
 slug: sqlalchemy-dialects-postgresql-excludeconstraint-examples
-sortorder: 500031008
+sortorder: 500031009
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql ExcludeConstraint
 meta: Python example code for the ExcludeConstraint class from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
@@ -1,13 +1,13 @@
 title: sqlalchemy.dialects.postgresql INTEGER code examples
 category: page
 slug: sqlalchemy-dialects-postgresql-integer-examples
-sortorder: 500031009
+sortorder: 500031010
 toc: False
 sidebartitle: sqlalchemy.dialects.postgresql INTEGER
-meta: Python example code for the INTEGER class from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+meta: Python example code for the INTEGER constant from the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
-INTEGER is a class within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
+INTEGER is a constant within the sqlalchemy.dialects.postgresql module of the SQLAlchemy project.
 
 
 ## Example 1 from alembic