jaredzhou/foxql/ast - mooncakes.io

README
U
Aggregation
U
Column
U
ColumnRef
U
DeleteBuilder
U
DeleteReady
U
DeleteStmt
U
Expr
U
Filter
U
InsertBuilder
U
InsertStmt
U
OrderByClause
U
OrderDirection
U
SelectBuilder
U
SelectStmt
U
SqlType
U
Table
U
UpdateBuilder
U
UpdateReady
U
UpdateStmt
Tr
FieldResolver
Tr
ToSql
- ::loadSchema::load
- ::tableSchema::table
T
SchemaColumn
- ::colSchemaTable::col
- ::deleteSchemaTable::delete
- ::has_columnSchemaTable::has_column
- ::insertSchemaTable::insert
- ::selectSchemaTable::select
- ::updateSchemaTable::update
V
avg
V
count
V
count_star
V
empty
V
max
V
min
V
not_
V
raw
V
sum

jaredzhou/foxql/ast does not have a README file

Aggregation

pub(all) enum Aggregation {
  Count(ColumnRef?)
  Sum(ColumnRef)
  Avg(ColumnRef)
  Min(ColumnRef)
  Max(ColumnRef)
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

An aggregation function call.

Aggregation::eq

source

fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::eq(self : Aggregation, value : T) -> Expr

Aggregation::gt

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fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::gt(self : Aggregation, value : T) -> Expr

Aggregation::gte

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fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::gte(self : Aggregation, value : T) -> Expr

Aggregation::lt

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fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::lt(self : Aggregation, value : T) -> Expr

Aggregation::lte

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fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::lte(self : Aggregation, value : T) -> Expr

Aggregation::neq

source

fn[T : @jaredzhou/moonpg.ToValue
ToValue + @moonbitlang/core/debug.Debug
Debug] Aggregation::neq(self : Aggregation, value : T) -> Expr

ColumnRef

source

pub(all) struct ColumnRef {
  name : String
  table : String
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Identifies a column by (table, name).

ColumnRef::eq

source

fn ColumnRef::eq(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

Compare with a value (for dynamic ColumnRefs).

ColumnRef::gt

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fn ColumnRef::gt(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

ColumnRef::gte

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fn ColumnRef::gte(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

ColumnRef::lt

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fn ColumnRef::lt(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

ColumnRef::lte

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fn ColumnRef::lte(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

ColumnRef::neq

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fn ColumnRef::neq(self : ColumnRef, value : &@jaredzhou/moonpg.ToValue
ToValue) -> Expr

DeleteStmt

source

pub(all) struct DeleteStmt {
  table : String
  where_clause : Expr
  returning : Array[ColumnRef]?
}

A DELETE statement. where_clause is non-optional.

Expr

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#alias(Filter)
pub(all) enum Expr {
  Empty
  Compare(ColumnRef, Operator, &@jaredzhou/moonpg.ToValue
ToValue)
  CompareCols(ColumnRef, Operator, ColumnRef)
  And(Array[Expr])
  Or(Array[Expr])
  Not(Expr)
  InList(ColumnRef, Array[&@jaredzhou/moonpg.ToValue
ToValue])
  InSelect(ColumnRef, SelectStmt)
  Between(ColumnRef, &@jaredzhou/moonpg.ToValue
ToValue, &@jaredzhou/moonpg.ToValue
ToValue)
  IsNull(ColumnRef)
  IsNotNull(ColumnRef)
  AggCompare(Aggregation, Operator, &@jaredzhou/moonpg.ToValue
ToValue)
  CompareSelect(ColumnRef, Operator, SelectStmt)
  Raw(String, Array[&@jaredzhou/moonpg.ToValue
ToValue])
}

A WHERE clause expression — a tree of comparisons joined by AND / OR / NOT. Values are stored as &@moonpg.ToValue trait objects, allowing any moonpg-compatible type to be bound as a parameter without going through a foxql Value enum.

Expr::and_

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fn Expr::and_(self : Expr, other : Expr) -> Expr

Combine two expressions with AND. Flattens nested And for cleaner SQL. Empty is the identity: Empty.and_(x) → x, x.and_(Empty) → x.

Expr::or_

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fn Expr::or_(self : Expr, other : Expr) -> Expr

Combine two expressions with OR. Flattens nested Or for cleaner SQL. Empty is the identity: Empty.or_(x) → x, x.or_(Empty) → x.

InsertStmt

source

pub(all) struct InsertStmt {
  table : String
  columns : Array[ColumnRef]
  values : Array[Array[&@jaredzhou/moonpg.ToValue
ToValue]]
  on_conflict : OnConflict?
  returning : Array[ColumnRef]?
}

An INSERT statement.

JoinClause

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pub(all) struct JoinClause {
  table : String
  on : Expr
}

An INNER JOIN clause.

OnConflict

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pub(all) enum OnConflict {
  DoNothing(String)
  DoUpdate(String, Array[SetClause])
}

Operator

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pub(all) enum Operator {
  Eq
  Neq
  Gt
  Gte
  Lt
  Lte
  Like
  NotLike
  In
  Between
  IsNull
  IsNotNull
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Operator::to_sql_op

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fn Operator::to_sql_op(self : Operator) -> String

Render the operator as its SQL keyword / symbol.

OrderByClause

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pub(all) struct OrderByClause {
  column : ColumnRef
  direction : OrderDirection
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

OrderDirection

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pub(all) enum OrderDirection {
  Asc
  Desc
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

ORDER BY direction.

SelectExpr

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pub(all) enum SelectExpr {
  Col(ColumnRef)
  Agg(Aggregation)
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

An item in the SELECT list — either a column reference or an aggregate call.

SelectStmt

source

pub(all) struct SelectStmt {
  table : String
  columns : Array[SelectExpr]
  where_clause : Expr?
  joins : Array[JoinClause]
  group_by : Array[ColumnRef]
  having : Expr?
  order_by : Array[OrderByClause]
  limit : Int?
  offset : Int?
  distinct : Bool
  distinct_on : Array[ColumnRef]
}

A SELECT statement.

SetClause

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pub(all) struct SetClause {
  column : ColumnRef
  value : &@jaredzhou/moonpg.ToValue
ToValue
}

UpdateStmt

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pub(all) struct UpdateStmt {
  table : String
  set_clauses : Array[SetClause]
  where_clause : Expr
  returning : Array[ColumnRef]?
}

An UPDATE statement. where_clause is non-optional.

empty

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fn empty() -> Expr

The empty filter — identity element for AND/OR. Use as a starting point when building filters from many optional conditions.

not_

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fn not_(expr : Expr) -> Expr

Wrap an expression with NOT. not_(Empty) → Empty.

Source Files

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#Aggregation

#Aggregation::eq

#Aggregation::gt

#Aggregation::gte

#Aggregation::lt

#Aggregation::lte

#Aggregation::neq

#ColumnRef

#ColumnRef::eq

#ColumnRef::gt

#ColumnRef::gte

#ColumnRef::lt

#ColumnRef::lte

#ColumnRef::neq

#DeleteStmt

#Expr

#Expr::and_

#Expr::or_

#InsertStmt

#JoinClause

#OnConflict

#Operator

#Operator::to_sql_op

#OrderByClause

#OrderDirection

#SelectExpr

#SelectStmt

#SetClause

#UpdateStmt

#empty

#not_

Source Files

Aggregation

Aggregation::eq

Aggregation::gt

Aggregation::gte

Aggregation::lt

Aggregation::lte

Aggregation::neq

ColumnRef

ColumnRef::eq

ColumnRef::gt

ColumnRef::gte

ColumnRef::lt

ColumnRef::lte

ColumnRef::neq

DeleteStmt

Expr

Expr::and_

Expr::or_

InsertStmt

JoinClause

OnConflict

Operator

Operator::to_sql_op

OrderByClause

OrderDirection

SelectExpr

SelectStmt

SetClause

UpdateStmt

empty

not_