Returns an {@link AggregateCall} that is approximately equivalent to this {@code AggCall} and is good for certain things, such as deriving field names

Assigns an alias to this group key. <p>Used to assign field names in the {@code group} operation.

Maps an aggregate function to an implementor.

Return function category.

Returns the names of the entities in matching pattern. The search is always case sensitive. This is caused by the fact that {@code DatabaseMetaData.ge

Infers the return type of a call to an {@link SqlOperator}. @param opBinding description of operator binding @return inferred type; may be null

Invokes method on an object with a given set of arguments. @param args Arguments to method @return Return value of method

Indicates that this operand takes no inputs.

Revise the handler for a given kind of metadata. <p>Should be invoked if the existing handler throws a {@link NoHandler} exception. @param handlerCl

Performs this operation on the given arguments. @param ordinal Ordinal @param k the first input argument @param v the second input argument

Derives an alias for a node, and invents a mangled identifier if it cannot. <p>Examples: <ul> <li>Alias: "1 + 2 as foo" yields "foo" <li>Identifier:

Convenience method, for {@link QueryableRecorder} methods that return a scalar value such as {@code boolean} or {@link BigDecimal}.

Creates a map type. Maps are unordered collections of key/value pairs. @param keyType type of the keys of the map @param valueType type of the valu

Derives type of the call via its binding. @param binding binding to derive the type from @return datatype of the call

Returns a visitor that finds nodes of a given {@link SqlKind}.

Returns the maximum precision (or length) allowed for this type, or {@link RelDataType#PRECISION_NOT_SPECIFIED} if precision/length are not applicable

Returns whether a type is DECIMAL.

Create a RowBuilder object that eases creation of a new row. @param size Number of columns in output data. @return New RowBuilder object.

Sets the rows that are expected to be returned from the SQL query, in no particular order.

Helper method to determine a {@link org.apache.calcite.rel.core.Values}'s collation. <p>We actually under-report the collations. A Values with 0 or 1

Adds a schema specification (or specifications) to the root schema, returning the last one created.

Evaluates this member to yield a result. The result is a {@link org.apache.calcite.linq4j.Queryable}. @param schemaInstance Object that is an instanc

Finds a field with a given name, using the current case-sensitivity, returning null if not found. @param rowType Row type @param fieldName Field n

Gets the SqlTypeName corresponding to a JDBC type. @param jdbcType the JDBC type of interest @return corresponding SqlTypeName, or null if the type i

Returns a flattened list of operands of this rule. @return flattened list of operands

Returns the SQL query as a string, concatenating a list of lines if necessary.

Returns whether this cost represents an expression that hasn't actually been implemented (e.g. a pure relational algebra expression) or can't actually

Looks up a node with a given name. Adds the match(es) to the resolved if found. @param names Name of node to find, maybe partially or fully qua

Very similar to {@link #checkType}, but generates inside a SELECT with a non-empty GROUP BY. Aggregate functions may be nullable if executed in a SELE

@deprecated Use {@link #rel}.

Returns the number of elements in a sequence.

Describes the inputs and attributes of this relational expression. Each node should call {@code super.explain}, then call the {@link org.apache.calcit

Returns the time frame with the given name, or throws {@link IllegalArgumentException} if not found. If {@code name} is an alias, resolves to the unde

Namespace for the given node. @param node node to compute the namespace for @return namespace for the given node, never null @see #getNamespace(SqlNo

Returns the invoked planner rule. @return planner rule

Returns a simple name for this RelTraitDef (for use in {@link org.apache.calcite.rel.RelNode#explain}).

Returns the type factory.

Returns the names of the types in this schema. @return Names of the tables in this schema

Returns an unmodifiable list view consisting of the left entry of each pair.

Returns this node without any wrapper added by the planner.

Returns a lookup object to find sub schemas.

Same as {@link #of(int...)}, but less ambiguous for code generators and compilers.

Creates a multiset type. Multisets are unordered collections of elements. @param elementType type of the elements of the multiset @param maxCardin

Returns a copy of this AggCall that is optionally distinct.

Returns the value of this literal, in the form that the calculator program builder wants it.

Creates a literal representing a flag. @param flag Flag value

Declares a method.

Returns a context that wraps an object. <p>A call to {@code unwrap(C)} will return {@code target} if it is an instance of {@code C}.

Creates an immutable list of 1 element.

Sets the rows that are expected to be returned from the SQL query.

Visits a literal. @param literal Literal @see SqlLiteral#accept(SqlVisitor)

Adds an instruction to attempt to match any rules of a given class. The order in which the rules within a class will be attempted is arbitrary, so if

Applies a mapping to a collation list. @param mapping Mapping @param collationList Collation list @return collation list with mapping applied t

Maps an operator to an implementor that calls one of a given list of methods.

Applies an action to every element of a pair of iterables. <p>Calls to the action stop whenever the first of the input iterators ends. But typically

Returns the root node of this scope. Never null.