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Diffstat (limited to 'doc/manual.tex')
| -rw-r--r-- | doc/manual.tex | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/manual.tex b/doc/manual.tex index c18a594c..9f3e44a8 100644 --- a/doc/manual.tex +++ b/doc/manual.tex @@ -2113,7 +2113,7 @@ $\mt{table}$ declarations may include constraints, via these grammar rules. $$\begin{array}{rrcll} \textrm{Declarations} & d &::=& \mt{table} \; x : c \; [pk[,]] \; cts \mid \mt{view} \; x = V \\ \textrm{Primary key constraints} & pk &::=& \mt{PRIMARY} \; \mt{KEY} \; K \\ - \textrm{Keys} & K &::=& f \mid (f, (f,)^+) \\ + \textrm{Keys} & K &::=& f \mid (f, (f,)^+) \mid \{\{e\}\} \\ \textrm{Constraint sets} & cts &::=& \mt{CONSTRAINT} f \; ct \mid cts, cts \mid \{\{e\}\} \\ \textrm{Constraints} & ct &::=& \mt{UNIQUE} \; K \mid \mt{CHECK} \; E \\ &&& \mid \mt{FOREIGN} \; \mt{KEY} \; K \; \mt{REFERENCES} \; F \; (K) \; [\mt{ON} \; \mt{DELETE} \; pr] \; [\mt{ON} \; \mt{UPDATE} \; pr] \\ |