Mosaic datasets in a geodatabase in PostgreSQL

Mosaic datasets contain a raster catalog and a set of properties and rules that define an on-the-fly mosaic view of the raster catalog. See What is a mosaic dataset? for more information.

Mosaic datasets in ArcGIS Desktop

In the Catalog tree, mosaic datasets have the following icon:

The name of the mosaic dataset in a geodatabase in PostgreSQL contains the database name, the name of the dataset owner, and the name of the mosaic dataset itself.

Mosaic datasets in a PostgreSQL database

Information about mosaic datasets is stored in the gdb_items and gdb_itemtypes system tables. There can be nine additional tables stored in the schema of the user who creates the mosaic dataset. Four of them—the ART, BND, CAT, and LOG tables—are created when you use the mosaic dataset is created; the other tables are generated the first time you perform an operation that requires the table's existence. Referenced mosaic datasets only have two tables: the BND and LOG tables.

The name portion of the table names is the name of the mosaic dataset. Be sure the name you give the mosaic dataset is 22 characters or fewer.

amd_<name>_art

This table stores a history of all the raster types used in this mosaic dataset.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier of the raster	NOT NULL
typename	varchar(50)	The name of the raster type or product
rastertype	bytea	A serialized object that stores all the properties of a particular raster type
description	varchar(250)	A user-defined description of the raster that helps to identify a particular add raster operation
firstused	timestamp without time zone	Records the date and time rasters were added to the mosaic dataset using the corresponding raster type object This time stamp never changes since it indicates the first time the raster type was used in the mosaic.
lastused	timestamp without time zone	Records the date and time one or more rasters were synchronized using this raster type The value in this field changes whenever the corresponding raster type is used.
lastsync	timestamp without time zone	The date and time the raster type was last synchronized

amd_<name>_bnd

The boundary for a mosaic dataset is a feature class. This table defines the boundary (extent) of the mosaic dataset.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier of the raster	NOT NULL
shape	st_geometry geometry	The shape of the boundary of the raster	NOT NULL

amd_<name>_cat

This is the raster catalog behind the mosaic dataset. It stores raster datasets that participate in mosaicking.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier for the dataset	NOT NULL
name	varchar(50)	Display name for the catalog item
minps	numeric(20,9)	Minimum pixel size
maxps	numeric(20,9)	Maximum pixel size
lowps	numeric(20,9)	Low pixel size
highps	numeric(20,9)	High pixel size
category	integer	Identifies the dataset type; 0 = Unknown, 1 = Primary, 2 = ServiceOverview, 3 = DerivedRaster, 255 = Custom
tag	varchar(20)	Identifies a dataset in a function template and indicates if the dataset is panchromatic, multispectral, or pan sharpened
groupname	varchar(50)	The name of the groups used to link together datasets belonging to a particular project (For example, for a QuickBird scene, the panchromatic and multispectral rasters that need to participate in pan sharpening will have the same group name.)
productname	varchar(50)	The name of the product of the raster data provided by the data source
centerx	numeric(20,9)	X-coordinate of the center of the raster's minimum bounding rectangle
centery	numeric(20,9)	Y-coordinate of the center of the raster's minimum bounding rectangle
zorder	numeric(20)	Controls the drawing order of rasters in a mosaic dataset
sorder	numeric(20)	Indicates the order of the rasters Used in seamline mosaic method
typeid	integer	ObjectID of the record in the amd_art table that contains details about the raster type object
stereoid	varchar(50)	ObjectID of the record in the amd_<name>_str table that holds details of the participating stereo pairs
itemts	numeric(20,14)	Time stamp of the modified raster Used to track which overviews need to be rebuilt when underlying rasters are changed Used by the Build Overview geoprocessing tool
urihash	varchar(50)	Uniquely identifies the sources of the raster Used by the Synchronize Mosaic Dataset geoprocessing tool
uri	bytea	A serialized Uniform Resource Identifier (URI) that is used to re-create the raster dataset
shape	st_geometry geometry	The minimum bounding rectangle of the raster dataset
raster	integer st_raster	A reference to a raster dataset along with its functions

amd_<name>_cca

This table stores information about color correction.

Field name	Field type	Description	Null?
objectid	integer	The row ID	NOT NULL
assocobjectid	integer	The row ID of the mosaic dataset catalog	NOT NULL
name	varchar(256)	Name of the raster item
prestorgammatableblob	bytea	Binary large object of color correction prestretch color map or Gamma map
shape	st_geometry geometry	Minimum bounding rectangle of the raster
raster	integer st_raster	Raster of local mean and local standard deviation

amd_<name>_csl

This table stores cell size levels of a mosaic dataset. The table is created when you specify or calculate the cell size for the mosaic dataset. Information in the table is updated when calculating cell size levels or defining overviews and is used while generating overviews.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier for the dataset	NOT NULL
instanceid	integer	The ObjectID of the raster type instance stored in the raster type table associated with the corresponding cell size level
levelid	integer	The identifier associated with the cell size level
cellsize	numeric(20,9)	The cell size value associated with the celll size level
minps	numeric(20,9)	Minimum pixel size
maxps	numeric(20,9)	Maximum pixel size
shape	st_geometry geometry	The minimum bounding polygon of all items belonging to the corresponding cell size level

amd_<name>_log

This table stores errors, warnings, and messages that are generated by various operations performed on a mosaic dataset.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier of each row in this table	NOT NULL
msgcode	numeric(20)	Error or warning code that uniquely identifies the message
msgsrc	varchar(100)	The source; usually the name of the operation that generated this message
msgtext	varchar(250)	The text description of the message
msgtype	numeric(14)	Differentiates between error, warning, and information messages: 1 = Error, 2 = Warning, 3 = Info1, 4 = Info2, 5= Info3, 100 = Debug
rasterid	numeric(14)	ObjectID of the record in the amd_<name>_cat table that corresponds to this message
msgtime	varchar(30)	The date and time the error or warning message occurred

amd_<name>_ovr

By default, the overview rasters that are created for mosaic datasets are stored in this table. If you change the storage location for the overviews, which can be done using the Define Overviews tool, this table will not be populated. Instead, a pointer to the overview location will be stored in the urihash field of the amd_<name>_cat table.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier of the overview record	NOT NULL
name	varchar(50)	System-generated name of the raster dataset value that identifies the row and column position of the overview record
raster	integer st_raster	The raster dataset

amd_<name>_sml

This table defines the seamline shapes that are used for mosaicking when the MosaicMethod used is seamline.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier of the seamline	NOT NULL
rasterid	numeric(14)	The objectID of the record in the amd_cat table that corresponds to this seamline shape	NOT NULL
shape	st_geometry geometry	The shape of the seamline	NOT NULL

amd_<name>_str

This table stores stereo IDs of the pairs that participate in a stereo image.

Field name	Field type	Description	Null?
objectid	integer	The unique identifier for each record in this table	NOT NULL
stereoid1	varchar(50)	ID of one of the participating stereo pairs
stereoid2	varchar(50)	ID of the other of the participating stereo pair

The following shows a mosaic dataset, basemap, in PostgreSQL.

Dashed lines indicate implicit relationships between columns.

Mosaic datasets in an XML document

Mosaic datasets are not currently supported in XML documents.