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CHANGELOG.md

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Change Log

Unreleased

  • Add support for compound filters with Q objects (desile)
  • Add support for BETWEEN operator (desile)
  • Distributed engine support (tsionyx)
  • _fields and _writable_fields are OrderedDicts - note that this might break backwards compatibility (tsionyx)
  • Improve error messages returned from the database with the ServerError class (tsionyx)
  • Added support of custom partitioning (M1hacka)
  • Added attribute server_version to Database class (M1hacka)
  • Changed Engine.create_table_sql(), Engine.drop_table_sql(), Model.create_table_sql(), Model.drop_table_sql() parameter to db from db_name (M1hacka)
  • Fix parsing of datetime column type when it includes a timezone (M1hacka)

v0.9.8

  • Bug fix: add field names list explicitly to Database.insert method (anci)
  • Added RunPython and RunSQL migrations (M1hacka)
  • Allow ISO-formatted datetime values (tsionyx)
  • Show field name in error message when invalid value assigned (tsionyx)
  • Bug fix: select query fails when query contains '$' symbol (M1hacka)
  • Prevent problems with AlterTable migrations related to field order (M1hacka)
  • Added documentation about custom fields.

v0.9.7

  • Add distinct method to querysets
  • Add AlterTableWithBuffer migration operation
  • Support Merge engine (M1hacka)

v0.9.6

  • Fix python3 compatibility (TvoroG)
  • Nullable arrays not supported in latest ClickHouse version
  • system.parts table no longer includes "replicated" column in latest ClickHouse version

v0.9.5

  • Added QuerySet.paginate()
  • Support for basic aggregation in querysets

v0.9.4

  • Migrations: when creating a table for a BufferModel, create the underlying table too if necessary

v0.9.3

  • Changed license from PSF to BSD
  • Nullable fields support (yamiou)
  • Support for queryset slicing

v0.9.2

  • Added ne and not_in queryset operators
  • Querysets no longer have a default order unless order_by is called
  • Added autocreate flag to database initializer
  • Fix some Python 2/3 incompatibilities (TvoroG, tsionyx)
  • To work around a JOIN bug in ClickHouse, $table now inserts only the table name, and the database name is sent in the query params instead

v0.9.0

  • Major new feature: building model queries using QuerySets
  • Refactor and expand the documentation
  • Add support for FixedString fields
  • Add support for more engine types: TinyLog, Log, Memory
  • Bug fix: Do not send readonly=1 when connection is already in readonly mode

v0.8.2

  • Fix broken Python 3 support (M1hacka)

v0.8.1

  • Add support for ReplacingMergeTree (leenr)
  • Fix problem with SELECT WITH TOTALS (pilosus)
  • Update serialization format of DateTimeField to 10 digits, zero padded (nikepan)
  • Greatly improve performance when inserting large strings (credit to M1hacka for identifying the problem)
  • Reduce memory footprint of Database.insert()

v0.8.0

  • Always keep datetime fields in UTC internally, and convert server timezone to UTC when parsing query results
  • Support for ALIAS and MATERIALIZED fields (M1ha)
  • Pagination: passing -1 as the page number now returns the last page
  • Accept datetime values for date fields (Zloool)
  • Support readonly mode in Database class (tswr)
  • Added support for the Buffer table engine (emakarov)
  • Added the SystemPart readonly model, which provides operations on partitions (M1ha)
  • Added Model.to_dict() that converts a model instance to a dictionary (M1ha)
  • Added Database.raw() to perform arbitrary queries (M1ha)

v0.7.1

  • Accept '0000-00-00 00:00:00' as a datetime value (tsionyx)
  • Bug fix: parse_array fails on int arrays
  • Improve performance when inserting many rows

v0.7.0

  • Support array fields
  • Support enum fields

v0.6.3

  • Python 3 support