Package index • lazysf

Lazy tables from GDAL vector sources

Create a lazy table from any GDAL-readable vector data source and pull results into memory with collect(). Standard dplyr verbs are translated to SQL and executed by GDAL.

lazysf(): Delayed (lazy) read for GDAL vector
collect: Collect a lazy GDAL query into memory
lazysf-package: lazysf: Delayed Read for 'GDAL' Vector Data Sources

DBI interface

Connect directly with DBI for finer control over dialect, geometry format, and the Arrow stream interface.

GDALSQL(): GDALSQL
dbConnect(<GDALVectorDriver>): dbConnect

DBI classes and methods

S4 classes for the GDAL vector driver, connection, and result, with their DBI methods (dbListTables, dbListFields, dbSendQuery, dbFetch, and friends).

dbDataType(<GDALVectorDriver>) dbIsValid(<GDALVectorDriver>) dbUnloadDriver(<GDALVectorDriver>) dbGetInfo(<GDALVectorDriver>): Class GDALVectorDriver
show(<GDALVectorConnection>) dbIsValid(<GDALVectorConnection>) dbGetInfo(<GDALVectorConnection>) dbSendQuery(<GDALVectorConnection>) dbReadTable(<GDALVectorConnection>,<character>) dbListTables(<GDALVectorConnection>) dbListFields(<GDALVectorConnection>,<character>) dbExistsTable(<GDALVectorConnection>,<ANY>) dbDisconnect(<GDALVectorConnection>): Class GDALVectorConnection (and methods)
show(<GDALVectorResult>) dbFetch(<GDALVectorResult>) dbClearResult(<GDALVectorResult>) dbHasCompleted(<GDALVectorResult>): Class GDALVectorResult (and methods)