QuackDB.Type (quackdb v0.4.0)

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DuckDB SQL type rendering shared by DDL and source helpers.

The protocol codec has its own logical type metadata for decoding wire values. This module is the SQL-facing counterpart: it renders user-friendly type specs into DuckDB type names for generated SQL.

Summary

Types

spec()

Functions

from_sql(type)

Parses a DuckDB SQL type name into a QuackDB type spec.

quote_identifier(value)

Renders an identifier with DuckDB SQL quoting.

to_sql(type)

Renders a DuckDB SQL type spec as iodata.

Types

spec()

@type spec() ::
  atom()
  | String.t()
  | {:varchar, pos_integer()}
  | {:char, pos_integer()}
  | {:decimal, pos_integer(), non_neg_integer()}
  | {:list, spec()}
  | {:array, spec(), pos_integer()}
  | {:map, spec(), spec()}
  | {:struct, keyword(spec()) | map()}

Functions

from_sql(type)

@spec from_sql(String.t()) ::
  {:ok, spec()} | {:error, {:unsupported_sql_type, String.t()}}

Parses a DuckDB SQL type name into a QuackDB type spec.

quote_identifier(value)

@spec quote_identifier(atom() | String.t()) :: iodata()

Renders an identifier with DuckDB SQL quoting.

to_sql(type)

@spec to_sql(spec()) :: iodata()

Renders a DuckDB SQL type spec as iodata.