Package adql

Parsing, annotating, and morphing queries in the Astronomical Data Query Language.

Submodules

gavo.adql.annotations: Adding field infos to columns and other objects in an ADQL parse tree.
gavo.adql.common: Exceptions and helper functions for ADQL processing.
gavo.adql.fieldinfo: Field Infos -- annotations to ADQL parse nodes carrying values.
gavo.adql.fieldinfos: FieldInfos are collections of inferred metadata on the columns present within ADQL relations.
gavo.adql.grammar: A parser for ADQL.
gavo.adql.morphhelpers: Helpers for morphing modules
gavo.adql.morphpg: Morphing ADQL into queries that postgres/pgSphere can understand.
gavo.adql.nodes: Node classes and factories used in ADQL tree processing.
gavo.adql.postproc: Operations on annotated ADQL trees done by parseAnnotated.
gavo.adql.tree: Trees of ADQL expressions and operations on them.
gavo.adql.ufunctions: "User" defined functions, i.e., ADQL functions defined only on this system.

Functions

getSymbols()

source code

getGrammar()

source code

parseToTree(adqlStatement)
returns a "naked" parse tree for adqlStatement.

source code

parseAnnotating(adqlStatement, fieldInfoGetter)
returns a tuple of context, parsedTree for parsing and annotating adqlStatement.

source code

Variables
	__package__ = `'gavo.adql'`

Function Details

returns a "naked" parse tree for adqlStatement.

It contains no annotations, so you'll usually not want to use this.

returns a tuple of context, parsedTree for parsing and annotating adqlStatement.

The builtin morphs are performed on the tree.