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Update CHANGELOG.md for v1.0.0-rc2.
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‎CHANGELOG.md‎

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@@ -3,6 +3,212 @@ All notable changes to this project will be documented in this file.
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## [Unreleased][unreleased]
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## [v1.0.0-rc2] - 2016-10-30
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### Changed
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- **BREAKING CHANGE** All named values for properties such as `variant`, `format`, and `type` should always be lowercase, even when uppercase in the input SQL (e.g., `variant` is now `natural join` instead of `NATURAL JOIN` in the AST).
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- **BREAKING CHANGE** New format for `CASE` expression AST nodes:
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- `variant` `when` has a `condition` and a `consequent`
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- `variant` `else` has just a `consequent`
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- the outer `expression` is now `variant` `case` instead of `binary`
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- instead of taking whatever is provided between `CASE` and `WHEN` (e.g., `CASE foo WHEN ...`) and calling that the expression, it is now added as the `discriminant`
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``` sql
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select
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case acc
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when a = 0 then a1
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when a = 1 then b1
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else c1
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end
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```
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``` json
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{
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"type": "expression",
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"variant": "case",
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"expression": [
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{
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"type": "condition",
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"variant": "when",
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"condition": {
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"type": "expression",
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"format": "binary",
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"variant": "operation",
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"operation": "=",
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"left": {
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"type": "identifier",
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"variant": "column",
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"name": "a"
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},
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"right": {
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"type": "literal",
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"variant": "decimal",
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"value": "0"
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}
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},
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"consequent": {
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"type": "identifier",
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"variant": "column",
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"name": "a1"
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}
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},
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{
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"type": "condition",
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"variant": "when",
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"condition": {
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"type": "expression",
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"format": "binary",
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"variant": "operation",
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"operation": "=",
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"left": {
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"type": "identifier",
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"variant": "column",
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"name": "a"
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},
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"right": {
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"type": "literal",
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"variant": "decimal",
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"value": "1"
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}
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},
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"consequent": {
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"type": "identifier",
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"variant": "column",
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"name": "b1"
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}
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},
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{
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"type": "condition",
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"variant": "else",
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"consequent": {
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"type": "identifier",
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"variant": "column",
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"name": "c1"
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}
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}
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],
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"discriminant": {
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"type": "identifier",
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"variant": "column",
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"name": "acc"
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}
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}
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```
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- **BREAKING CHANGE** New format for `EXISTS` expression nodes. Use `expression` node in `condition` for `IF NOT EXISTS`. `NOT EXISTS`, and `EXISTS` modifiers instead of a string value.
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- `CREATE TABLE` statement
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``` sql
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create table if not exists foo(id int)
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```
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``` json
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{
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"type": "statement",
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"name": {
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"type": "identifier",
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"variant": "table",
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"name": "foo"
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},
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"variant": "create",
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"format": "table",
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"definition": [
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{
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"type": "definition",
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"variant": "column",
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"name": "id",
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"definition": [],
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"datatype": {
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"type": "datatype",
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"variant": "int",
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"affinity": "integer"
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}
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}
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],
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"condition": [
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{
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"type": "condition",
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"variant": "if",
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"condition": {
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"type": "expression",
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"variant": "exists",
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"operator": "not exists"
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}
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}
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]
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}
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```
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- `DROP TABLE` statement
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``` sql
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drop table if exists foo
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```
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``` json
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{
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"type": "statement",
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"target": {
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"type": "identifier",
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"variant": "table",
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"name": "foo"
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},
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"variant": "drop",
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"format": "table",
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"condition": [
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{
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"type": "condition",
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"variant": "if",
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"condition": {
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"type": "expression",
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"variant": "exists",
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"operator": "exists"
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}
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}
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]
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}
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```
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- `NOT EXISTS` expression
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``` sql
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select a
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where not exists (select b)
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```
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``` json
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{
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"type": "statement",
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"variant": "select",
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"result": [
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{
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"type": "identifier",
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"variant": "column",
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"name": "a"
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}
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],
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"where": [
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{
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"type": "expression",
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"format": "unary",
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"variant": "exists",
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"expression": {
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"type": "statement",
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"variant": "select",
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"result": [
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{
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"type": "identifier",
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"variant": "column",
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"name": "b"
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}
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]
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},
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"operator": "not exists"
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}
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]
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}
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```
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## [v1.0.0-rc1] - 2016-10-16
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### Added
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- The root node of the AST now has `type` and `variant` properties:
@@ -1032,7 +1238,8 @@ part of table names, column names, aliases, etc... This also addresses issues th
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### Added
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- First working version of sqlite-parser
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[unreleased]: https://github.com/codeschool/sqlite-parser/compare/v1.0.0-rc1...HEAD
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[unreleased]: https://github.com/codeschool/sqlite-parser/compare/v1.0.0-rc2...HEAD
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[v1.0.0-rc2]: https://github.com/codeschool/sqlite-parser/compare/v1.0.0-rc1...v1.0.0-rc2
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[v1.0.0-rc1]: https://github.com/codeschool/sqlite-parser/compare/v0.14.5...v1.0.0-rc1
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[v0.14.5]: https://github.com/codeschool/sqlite-parser/compare/v0.14.4...v0.14.5
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[v0.14.4]: https://github.com/codeschool/sqlite-parser/compare/v0.14.3...v0.14.4

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