Creates a mapping that consists of a set of contiguous ranges. <p>For example, <blockquote><pre>createShiftMapping(60, 100, 0, 3, 200, 50, 5

Creates a validator.

Deduce constant columns from predicates of rel and return the union bitsets of checkingColumns and the constant columns.

Ensures expression is interpreted as a specified type. The returned expression may be wrapped with a cast. <p>This method corrects the nullability of

Returns the values in this partially-ordered set that are less-than a given value and there are no intervening values. <p>If the value is not in this

Returns 1-based starting column number.

Gets the SqlTypeFamily containing this SqlTypeName. @return containing family, or null for none (SYMBOL, DISTINCT, STRUCTURED, ROW, OTHER)

Returns the number of milliseconds since the epoch. Always a multiple of 86,400,000 (the number of milliseconds in a day).

Returns the fully-qualified name of this operator.

Returns a list of (expression, name) pairs. Convenient for various transformations. @return List of (expression, name) pairs

Finds the namespace corresponding to a given node. <p>For example, in the query <code>SELECT FROM (SELECT FROM t), t1 AS alias</code>, the both items

Returns the number of sources. Valid sources will be in the range 0 .. sourceCount.

Returns a {@link Matcher} that succeeds if the given {@link SqlNode} is a DDL statement.

SQL <code> </code> operator applied to int values.

Creates a type with generic parameters.

Returns an enumerator that is the cartesian product of the given enumerators. <p>For example, given enumerator A that returns {"a", "b", "c"} and enu

Returns the root relational expression, creating a {@link LogicalProject} if necessary to remove fields that are not needed.

Pushes a collection of relational expressions.

Creates a pattern that matches the two patterns at the top of the stack in sequence, and pushes it onto the stack.

As {@link #simplify(RexNode)}, but for a boolean expression for which a result of UNKNOWN will be treated as FALSE. <p>Use this form for expressions

Returns the contents of this writer as a 'certified kocher' SQL string. @return SQL string

If this is a strict monotonicity (StrictlyIncreasing, StrictlyDecreasing) returns the non-strict equivalent (Increasing, Decreasing). @return non-str

Creates a new document with a given resource. <p>This method is synchronized, in case two threads are running test cases of this test at the same tim

Sets {@link #bloat()}.

Returns a fixture that tests a given SQL quoting style.

Defines a table within this schema.

Creates an anti-join. <p>An anti-join is a form of join that combines two relational expressions according to some condition, but outputs only rows f

Applies arguments to yield a table. @param arguments Arguments @return Table

Checks that {@link RelMetadataQuery#getColumnOrigins(RelNode, int)} for column 0 returns one origin.

Asserts two rex nodes are equal.

Creates a call to the {@code AVG} aggregate function.

Changes a relational expression to an equivalent one with a different set of traits. @param rel Relational expression (may or may not have been regis

Collapses an expanded version of {@code IS NOT DISTINCT FROM} expression. <p>Helper method for {@link #splitJoinCondition(RexBuilder, int, RexNode, L

Returns a expression that yields a comparer, or null if this type is comparable.

Checks that when the query (which was set using {@link AssertThat#query(String)}) is converted to a relational algebra expression matching the given s

Creates a {@link Correlate} with a {@link CorrelationId} and an array of fields that are used by correlation.

Creates an Exchange by distribution.

Executes a {@code CREATE FOREIGN SCHEMA} command.

Returns whether the writer needs to expand node's detail information when printing plan. For example, LogicalSort(sort0=[$0], dir0=[ASC]) will be expa

Fully expands a RexLocalRef back into a pure RexNode tree containing no RexLocalRefs (reversing the effect of common subexpression elimination). For e

Returns a table with the given extra fields. <p>The extended table includes the fields of this base table plus the extended fields that do not have t

Finds an aggregate. @param node Parse tree to search @return First aggregate function in parse tree, or null if not found

Returns the ordinal of the first element in the list which is equal to a previous element in the list. <p>For example, <code>firstDuplicate(Arrays.as

Equivalent of String.format(Locale.ENGLISH, message, formatArgs).

Freezes the contents of this value set into a column, optionally re-ordering if {@code sources} is specified.

Returns the {@link BuiltInMetadata.AllPredicates#getAllPredicates()} statistic. @param rel the relational expression @return All predicates within an

Returns a list of functions in this schema with the given name, or an empty list if there is no such function. @param name Name of function @return L

Returns a digest of this {@code RelNode}. <p>INTERNAL USE ONLY. For use by the planner. @return Digest of this {@code RelNode} @see #getDigest()

Returns the {@link BuiltInMetadata.RowCount#getRowCount()} statistic. @param rel the relational expression @return estimated row count, or null if no

Attaches an array of hints to the stack top relational expression. <p>The redundant hints would be eliminated. @param hints Hints @throws Assertion

Returns whether two collections have any elements in common.

Copies the contents of this sequence into a collection.