summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
Diffstat (limited to 'doc')
-rw-r--r--doc/manual.tex2
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] \\