diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index 9d31bdbb27..8dc78d5839 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -152,7 +152,7 @@ typedef struct Query * Supporting data structures for Parse Trees * * Most of these node types appear in raw parsetrees output by the grammar, - * and get transformed to something else by the analyzer. A few of them + * and get transformed to something else by the analyzer. A few of them * are used as-is in transformed querytrees. ****************************************************************************/ @@ -166,7 +166,7 @@ typedef struct Query * be prespecified in typemod, otherwise typemod is unused. * * If pct_type is TRUE, then names is actually a field name and we look up - * the type of that field. Otherwise (the normal case), names is a type + * the type of that field. Otherwise (the normal case), names is a type * name possibly qualified with schema and database name. */ typedef struct TypeName @@ -185,7 +185,7 @@ typedef struct TypeName /* * ColumnRef - specifies a reference to a column, or possibly a whole tuple * - * The "fields" list must be nonempty. It can contain string Value nodes + * The "fields" list must be nonempty. It can contain string Value nodes * (representing names) and A_Star nodes (representing occurrence of a '*'). * Currently, A_Star must appear only as the last list element --- the grammar * is responsible for enforcing this! @@ -505,7 +505,7 @@ typedef struct IndexElem /* * DefElem - a generic "name = value" option definition * - * In some contexts the name can be qualified. Also, certain SQL commands + * In some contexts the name can be qualified. Also, certain SQL commands * allow a SET/ADD/DROP action to be attached to option settings, so it's * convenient to carry a field for that too. (Note: currently, it is our * practice that the grammar allows namespace and action only in statements @@ -532,7 +532,7 @@ typedef struct DefElem /* * LockingClause - raw representation of FOR UPDATE/SHARE options * - * Note: lockedRels == NIL means "all relations in query". Otherwise it + * Note: lockedRels == NIL means "all relations in query". Otherwise it * is a list of RangeVar nodes. (We use RangeVar mainly because it carries * a location field --- currently, parse analysis insists on unqualified * names in LockingClause.) @@ -584,8 +584,8 @@ typedef struct XmlSerialize * * In RELATION RTEs, the colnames in both alias and eref are indexed by * physical attribute number; this means there must be colname entries for - * dropped columns. When building an RTE we insert empty strings ("") for - * dropped columns. Note however that a stored rule may have nonempty + * dropped columns. When building an RTE we insert empty strings ("") for + * dropped columns. Note however that a stored rule may have nonempty * colnames for columns dropped since the rule was created (and for that * matter the colnames might be out of date due to column renamings). * The same comments apply to FUNCTION RTEs when the function's return type @@ -593,9 +593,9 @@ typedef struct XmlSerialize * * In JOIN RTEs, the colnames in both alias and eref are one-to-one with * joinaliasvars entries. A JOIN RTE will omit columns of its inputs when - * those columns are known to be dropped at parse time. Again, however, + * those columns are known to be dropped at parse time. Again, however, * a stored rule might contain entries for columns dropped since the rule - * was created. (This is only possible for columns not actually referenced + * was created. (This is only possible for columns not actually referenced * in the rule.) When loading a stored rule, we replace the joinaliasvars * items for any such columns with null pointers. (We can't simply delete * them from the joinaliasvars list, because that would affect the attnums @@ -614,7 +614,7 @@ typedef struct XmlSerialize * decompiled queries. * * requiredPerms and checkAsUser specify run-time access permissions - * checks to be performed at query startup. The user must have *all* + * checks to be performed at query startup. The user must have *all* * of the permissions that are OR'd together in requiredPerms (zero * indicates no permissions checking). If checkAsUser is not zero, * then do the permissions checks using the access rights of that user, @@ -668,7 +668,7 @@ typedef struct RangeTblEntry * Fields valid for a join RTE (else NULL/zero): * * joinaliasvars is a list of (usually) Vars corresponding to the columns - * of the join result. An alias Var referencing column K of the join + * of the join result. An alias Var referencing column K of the join * result can be replaced by the K'th element of joinaliasvars --- but to * simplify the task of reverse-listing aliases correctly, we do not do * that until planning time. In detail: an element of joinaliasvars can @@ -730,7 +730,7 @@ typedef struct RangeTblEntry * You might think that ORDER BY is only interested in defining ordering, * and GROUP/DISTINCT are only interested in defining equality. However, * one way to implement grouping is to sort and then apply a "uniq"-like - * filter. So it's also interesting to keep track of possible sort operators + * filter. So it's also interesting to keep track of possible sort operators * for GROUP/DISTINCT, and in particular to try to sort for the grouping * in a way that will also yield a requested ORDER BY ordering. So we need * to be able to compare ORDER BY and GROUP/DISTINCT lists, which motivates @@ -748,10 +748,10 @@ typedef struct RangeTblEntry * here, but it's cheap to get it along with the sortop, and requiring it * to be valid eases comparisons to grouping items.) * - * In a grouping item, eqop must be valid. If the eqop is a btree equality + * In a grouping item, eqop must be valid. If the eqop is a btree equality * operator, then sortop should be set to a compatible ordering operator. * We prefer to set eqop/sortop/nulls_first to match any ORDER BY item that - * the query presents for the same tlist item. If there is none, we just + * the query presents for the same tlist item. If there is none, we just * use the default ordering op for the datatype. * * If the tlist item's type has a hash opclass but no btree opclass, then @@ -988,7 +988,7 @@ typedef struct SelectStmt * range table. Its setOperations field shows the tree of set operations, * with leaf SelectStmt nodes replaced by RangeTblRef nodes, and internal * nodes replaced by SetOperationStmt nodes. Information about the output - * column types is added, too. (Note that the child nodes do not necessarily + * column types is added, too. (Note that the child nodes do not necessarily * produce these types directly, but we've checked that their output types * can be coerced to the output column type.) Also, if it's not UNION ALL, * information about the types' sort/group semantics is provided in the form @@ -1249,7 +1249,7 @@ typedef struct AccessPriv * * Note: because of the parsing ambiguity with the GRANT <privileges> * statement, granted_roles is a list of AccessPriv; the execution code - * should complain if any column lists appear. grantee_roles is a list + * should complain if any column lists appear. grantee_roles is a list * of role names, as Value strings. * ---------------------- */ @@ -1268,7 +1268,7 @@ typedef struct GrantRoleStmt * Copy Statement * * We support "COPY relation FROM file", "COPY relation TO file", and - * "COPY (query) TO file". In any given CopyStmt, exactly one of "relation" + * "COPY (query) TO file". In any given CopyStmt, exactly one of "relation" * and "query" must be non-NULL. * ---------------------- */ @@ -1403,7 +1403,7 @@ typedef struct Constraint * * If skip_validation is true then we skip checking that the existing rows * in the table satisfy the constraint, and just install the catalog entries - * for the constraint. This is currently used only during CREATE TABLE + * for the constraint. This is currently used only during CREATE TABLE * (when we know the table must be empty). * ---------- */ @@ -1799,7 +1799,7 @@ typedef struct CommentStmt * Declare Cursor Statement * * Note: the "query" field of DeclareCursorStmt is only used in the raw grammar - * output. After parse analysis it's set to null, and the Query points to the + * output. After parse analysis it's set to null, and the Query points to the * DeclareCursorStmt, not vice versa. * ---------------------- */ |