package granary

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Pure-OCaml SQL engine

Install 

dune-project
 Dependency

github.com Edit opam file Versions (1)

Authors

  1. T
    Tej Pochiraju <foss@tej.sh>

Maintainers

  1. T
    Tej Pochiraju <foss@tej.sh>

Sources

0.0.3.tar.gz
sha256=8b18780ea373be48301d9f333925860a2f9110fc0ac28684295118d72b65a67e
sha512=25ca3c9c5e2b528704a542502e0f37dc33ba003f65622d969b8c2b800778585f8ef0cf89b36e6679832e3993e8303aecddfc662742baf7044d6afe4a796b8f11

doc/granary.encoding/Granary_encoding/Index_key/index.html

Module Granary_encoding.Index_keySource

Order-preserving encoding of SQL values for use as B+-tree index keys. Encoded bytes compare correctly under Bytes.compare for all supported types. NULL sorts before all non-null values. Type ordering: NULL < INTEGER < REAL < TEXT < BLOB

Sourcetype value =
  1. | IK_null
  2. | IK_int of int64
  3. | IK_real of float
  4. | IK_text of string
  5. | IK_blob of bytes
Sourceval encode_value : value -> bytes

Encode a single value. Result is order-preserving under Bytes.compare.

Sourceval encode : value list -> rowid:int64 -> bytes

Encode a multi-column key with a rowid suffix. Result: concat of encode_value for each column + rowid suffix (8 bytes).

Sourceval decode : bytes -> (value list * int64, string) result

Decode a key produced by encode. Returns (column_values, rowid).