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feat: add dump_nt_graph_procedure.sql script #25

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feat: add dump_nt_graph_procedure.sql script #25

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43 changes: 43 additions & 0 deletions dump_nt_graph_procedure.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
CREATE PROCEDURE dump_nt_graph
( IN srcgraph VARCHAR
, IN out_file VARCHAR
, IN file_length_limit INTEGER := 1000000000
) {
DECLARE env, ses ANY;
DECLARE ses_len
, max_ses_len
, file_len INTEGER;
SET ISOLATION = 'uncommitted';
max_ses_len := 10000000;
file_len := 0;
string_to_file (
out_file,
sprintf ( '# Dump of graph <%s>, as of %s\n@base <> .\n',
srcgraph, CAST (NOW() AS VARCHAR) ),
-2
);
env := vector (0, 0, 0);
ses := string_output ();
FOR (SELECT * FROM ( SPARQL DEFINE input:storage ""
SELECT ?s ?p ?o { GRAPH `iri(?:srcgraph)` { ?s ?p ?o } }
) AS sub OPTION (LOOP)) DO {
http_nt_triple (env, "s", "p", "o", ses);
ses_len := length (ses);
IF (ses_len > max_ses_len) {
file_len := file_len + ses_len;
IF (file_len > file_length_limit) {
string_to_file (out_file, ses, -1);
file_len := 0;
env := vector (0, 0, 0);
} ELSE {
string_to_file (out_file, ses, -1);
}
ses := string_output ();
}
}
IF (LENGTH (ses)) {
string_to_file (out_file, ses, -1);
gz_compress_file (out_file, out_file||'.gz');
file_delete (out_file);
}
};
1 change: 1 addition & 0 deletions virtuoso.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ if [ "$SPARQL_UPDATE" = "true" ]; then echo 'GRANT execute on "DB.DBA.L_O_LOOK_N
virtuoso-t +configfile ${CONFIG_FILE} +wait
isql-v -U dba -P dba < /virtuoso/dump_nquads_procedure.sql
isql-v -U dba -P dba < /virtuoso/dump_one_graph_procedure.sql
isql-v -U dba -P dba < /virtuoso/dump_nt_graph_procedure.sql
isql-v -U dba -P dba < /sql-query.sql
kill $(ps ax | egrep '[v]irtuoso-t' | awk '{print $1}')

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