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vnightly
Examples
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Reference
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API
/
engines.DUCKDB
API Index
Contracts
transform
verify
unique
key
references
Report
Report.from_substrait
Report Methods
Report.to_json
Report.from_json
Report.from_substrait
Report.to_substrait
Report.substrait_contract
Report.to_sql
Report.check_inputs
Report.run
Report.proved
Report.floats_unmet
Report.needed
Report.needed_text
Report.equivalence
Report.needs
Report.needed_conditions
Report.needs_text
Report.needs_lines
Report.errors
Report.warnings
Report.suggestions
Report.unproved
Report.notes
Report.route
Report.verdict
Report.__str__
Transforms, nodes and refresh
Node
sql.Unsupported
sql.Dialect
sql.parse_plan
sql.to_sql
sql.dialect_of
sql.Kind
sql.DIALECTS
group
io.Changes
nodes.Group
nodes.Refresh
nodes.Status
nodes.NodeStatus
nodes.StageRefresh
Node Methods
Node.__repr__
Node.schema
Node.internal_plan
Node.plan
Node.report
Node.to_substrait
Node.to_sql
Node.pipe
Node.write
Node.refresh
Node.status
Node.table
Node.versions
Node.to_arrow
Node.quarantined
Node.to_polars
Node.to_pandas
Sources and sinks
io.DeltaSource
io.DeltaSink
io.IcebergSource
io.IcebergSink
io.StaticSource
io.SinkWrite
io.Contract
io.Storage
Your own sources and sinks
io.Source
io.Batch
io.from_query
io.from_frame
io.from_files
io.Sink
io.SinkChange
io.sink_from
io.VersionedSource
io.Snapshot
io.SourceBatch
Engines and SQL
connect
engines.run
engines.ENGINES
engines.Connection
engines.Dialect
engines.DUCKDB
engines.SNOWFLAKE
engines.SPARK
engines.Unsupported
engines.SPARK_CONF
engines.run_sharded
ASOF joins
asof_join
Plans
engines.to_sql
engines.substrait_json
engines.written_plan
engines.run_substrait_json
engines.delta_plans
Testing
testing.assert_contract
testing.assert_engines_agree
testing.cases
testing.source
testing.installed_engines
Command line
cli.main
cli.discover
cli.summary
cli.Discovery
cli.Checked
Standards
odcs.export
odcs.write
odcs.read
odcs.OdcsContract
odcs.Unread
odcs.UnreadRuleWarning
Errors
errors.SverifyError
errors.VerificationError
errors.PreconditionError
errors.PostconditionError
errors.CompositionError
errors.NotIncremental
errors.AuditError
errors.SchemaError
errors.SqlError
errors.ExportError
errors.Unsupported
engines.DUCKDB
engines.DUCKDB
:
Dialect
=
DuckDBDialect(
"duckdb"
)