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const char *_get_column_type(const char *class, int type); /* get sqlite type corresponding to R class & type */
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const char *_get_column_type(const char *class, int type); /* get sqlite type corresponding to R class & type */
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sqlite3* _is_sqlitedb(char *filename);
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sqlite3* _is_sqlitedb(char *filename);
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void _init_sqlite_function_accumulator();
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void _init_sqlite_function_accumulator();
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/* global buffer (g_sql_buf) utilities */
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/* global buffer (g_sql_buf) utilities */
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int _expand_buf(int i, int size);  /* expand ith buf if size > buf[i].size */
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R_INLINE void _expand_buf(int i, int size);  /* expand ith buf if size > buf[i].size */
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/* workspace utilities */
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/* workspace utilities */
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int _prepare_attach2();  /* prepare workspace before attaching a sqlite db */
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int _prepare_attach2();  /* prepare workspace before attaching a sqlite db */
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SEXP sdf_import_sqlite_table(SEXP _dbfilename, SEXP _tblname, SEXP _sdfiname);
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SEXP sdf_import_sqlite_table(SEXP _dbfilename, SEXP _tblname, SEXP _sdfiname);
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/* sqlite_matrix.c */
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/* sqlite_matrix.c */
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SEXP sdf_as_matrix(SEXP sdf, SEXP name);
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SEXP sdf_as_matrix(SEXP sdf, SEXP name);
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SEXP sdf_create_smat(SEXP svec, SEXP dimnames);
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SEXP sdf_create_smat(SEXP svec, SEXP dimnames);
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/* sqlite_biglm.c */
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SEXP sdf_do_biglm(SEXP sdfx, SEXP svecy, SEXP sdfx_dim, SEXP intercept);
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#endif
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#endif